X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=blobdiff_plain;f=fs%2Fnfs%2Fnfs4xdr.c;h=3a71b40a990a4367a0789a81efea784572f1b3f2;hp=1fcca516e6eeebf92da33403ddea0d83cd18662e;hb=d327cf7449e6fd5cbac784c641770e9366faa386;hpb=aa53ed541a1fec78a78d02afc8b042d040cc080d diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 1fcca51..3a71b40 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -8,7 +8,7 @@ * * Kendrick Smith * Andy Adamson - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -39,7 +39,6 @@ #include #include #include -#include #include #include #include @@ -67,14 +66,20 @@ static int nfs4_stat_to_errno(int); #define NFS4_MAXTAGLEN 0 #endif -/* lock,open owner id: - * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2) +/* lock,open owner id: + * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) */ -#define owner_id_maxsz (1 + 1) +#define open_owner_id_maxsz (1 + 4) +#define lock_owner_id_maxsz (1 + 4) +#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define op_encode_hdr_maxsz (1) #define op_decode_hdr_maxsz (2) +#define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) +#define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) +#define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) +#define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ (NFS4_FHSIZE >> 2)) #define decode_putfh_maxsz (op_decode_hdr_maxsz) @@ -87,26 +92,35 @@ static int nfs4_stat_to_errno(int); #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) +#define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) +#define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) /* This is based on getfattr, which uses the most attributes: */ #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ - 3 + 3 + 3 + 2 * nfs4_name_maxsz)) + 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ nfs4_fattr_value_maxsz) #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) +#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ + 1 + 2 + 1 + \ + nfs4_owner_maxsz + \ + nfs4_group_maxsz + \ + 4 + 4) #define encode_savefh_maxsz (op_encode_hdr_maxsz) #define decode_savefh_maxsz (op_decode_hdr_maxsz) #define encode_restorefh_maxsz (op_encode_hdr_maxsz) #define decode_restorefh_maxsz (op_decode_hdr_maxsz) -#define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) +#define encode_fsinfo_maxsz (encode_getattr_maxsz) #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) #define decode_renew_maxsz (op_decode_hdr_maxsz) #define encode_setclientid_maxsz \ (op_encode_hdr_maxsz + \ - 4 /*server->ip_addr*/ + \ - 1 /*Netid*/ + \ - 6 /*uaddr*/ + \ - 6 + (NFS4_VERIFIER_SIZE >> 2)) + XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ + XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ + 1 /* sc_prog */ + \ + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ + 1) /* sc_cb_ident */ #define decode_setclientid_maxsz \ (op_decode_hdr_maxsz + \ 2 + \ @@ -116,120 +130,300 @@ static int nfs4_stat_to_errno(int); 3 + (NFS4_VERIFIER_SIZE >> 2)) #define decode_setclientid_confirm_maxsz \ (op_decode_hdr_maxsz) -#define encode_lookup_maxsz (op_encode_hdr_maxsz + \ - 1 + ((3 + NFS4_FHSIZE) >> 2)) +#define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) +#define decode_lookup_maxsz (op_decode_hdr_maxsz) +#define encode_share_access_maxsz \ + (2) +#define encode_createmode_maxsz (1 + encode_attrs_maxsz) +#define encode_opentype_maxsz (1 + encode_createmode_maxsz) +#define encode_claim_null_maxsz (1 + nfs4_name_maxsz) +#define encode_open_maxsz (op_encode_hdr_maxsz + \ + 2 + encode_share_access_maxsz + 2 + \ + open_owner_id_maxsz + \ + encode_opentype_maxsz + \ + encode_claim_null_maxsz) +#define decode_ace_maxsz (3 + nfs4_owner_maxsz) +#define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ + decode_ace_maxsz) +#define decode_change_info_maxsz (5) +#define decode_open_maxsz (op_decode_hdr_maxsz + \ + decode_stateid_maxsz + \ + decode_change_info_maxsz + 1 + \ + nfs4_fattr_bitmap_maxsz + \ + decode_delegation_maxsz) +#define encode_open_confirm_maxsz \ + (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + 1) +#define decode_open_confirm_maxsz \ + (op_decode_hdr_maxsz + \ + decode_stateid_maxsz) +#define encode_open_downgrade_maxsz \ + (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + 1 + \ + encode_share_access_maxsz) +#define decode_open_downgrade_maxsz \ + (op_decode_hdr_maxsz + \ + decode_stateid_maxsz) +#define encode_close_maxsz (op_encode_hdr_maxsz + \ + 1 + encode_stateid_maxsz) +#define decode_close_maxsz (op_decode_hdr_maxsz + \ + decode_stateid_maxsz) +#define encode_setattr_maxsz (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + \ + encode_attrs_maxsz) +#define decode_setattr_maxsz (op_decode_hdr_maxsz + \ + nfs4_fattr_bitmap_maxsz) +#define encode_read_maxsz (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + 3) +#define decode_read_maxsz (op_decode_hdr_maxsz + 2) +#define encode_readdir_maxsz (op_encode_hdr_maxsz + \ + 2 + encode_verifier_maxsz + 5) +#define decode_readdir_maxsz (op_decode_hdr_maxsz + \ + decode_verifier_maxsz) +#define encode_readlink_maxsz (op_encode_hdr_maxsz) +#define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) +#define encode_write_maxsz (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + 4) +#define decode_write_maxsz (op_decode_hdr_maxsz + \ + 2 + decode_verifier_maxsz) +#define encode_commit_maxsz (op_encode_hdr_maxsz + 3) +#define decode_commit_maxsz (op_decode_hdr_maxsz + \ + decode_verifier_maxsz) #define encode_remove_maxsz (op_encode_hdr_maxsz + \ nfs4_name_maxsz) +#define decode_remove_maxsz (op_decode_hdr_maxsz + \ + decode_change_info_maxsz) #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2 * nfs4_name_maxsz) -#define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) +#define decode_rename_maxsz (op_decode_hdr_maxsz + \ + decode_change_info_maxsz + \ + decode_change_info_maxsz) #define encode_link_maxsz (op_encode_hdr_maxsz + \ nfs4_name_maxsz) -#define decode_link_maxsz (op_decode_hdr_maxsz + 5) +#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) +#define encode_lock_maxsz (op_encode_hdr_maxsz + \ + 7 + \ + 1 + encode_stateid_maxsz + 8) +#define decode_lock_denied_maxsz \ + (8 + decode_lockowner_maxsz) +#define decode_lock_maxsz (op_decode_hdr_maxsz + \ + decode_lock_denied_maxsz) +#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) +#define decode_lockt_maxsz (op_decode_hdr_maxsz + \ + decode_lock_denied_maxsz) +#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ + encode_stateid_maxsz + \ + 4) +#define decode_locku_maxsz (op_decode_hdr_maxsz + \ + decode_stateid_maxsz) +#define encode_access_maxsz (op_encode_hdr_maxsz + 1) +#define decode_access_maxsz (op_decode_hdr_maxsz + 2) #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 1 + nfs4_name_maxsz + \ 1 + \ nfs4_fattr_maxsz) #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) #define encode_create_maxsz (op_encode_hdr_maxsz + \ - 2 + nfs4_name_maxsz + \ - nfs4_fattr_maxsz) -#define decode_create_maxsz (op_decode_hdr_maxsz + 8) + 1 + 2 + nfs4_name_maxsz + \ + encode_attrs_maxsz) +#define decode_create_maxsz (op_decode_hdr_maxsz + \ + decode_change_info_maxsz + \ + nfs4_fattr_bitmap_maxsz) +#define encode_statfs_maxsz (encode_getattr_maxsz) +#define decode_statfs_maxsz (decode_getattr_maxsz) #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) +#define encode_getacl_maxsz (encode_getattr_maxsz) +#define decode_getacl_maxsz (op_decode_hdr_maxsz + \ + nfs4_fattr_bitmap_maxsz + 1) +#define encode_setacl_maxsz (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + 3) +#define decode_setacl_maxsz (decode_setattr_maxsz) +#define encode_fs_locations_maxsz \ + (encode_getattr_maxsz) +#define decode_fs_locations_maxsz \ + (0) + +#if defined(CONFIG_NFS_V4_1) +#define NFS4_MAX_MACHINE_NAME_LEN (64) + +#define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ + encode_verifier_maxsz + \ + 1 /* co_ownerid.len */ + \ + XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ + 1 /* flags */ + \ + 1 /* spa_how */ + \ + 0 /* SP4_NONE (for now) */ + \ + 1 /* zero implemetation id array */) +#define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ + 2 /* eir_clientid */ + \ + 1 /* eir_sequenceid */ + \ + 1 /* eir_flags */ + \ + 1 /* spr_how */ + \ + 0 /* SP4_NONE (for now) */ + \ + 2 /* eir_server_owner.so_minor_id */ + \ + /* eir_server_owner.so_major_id<> */ \ + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ + /* eir_server_scope<> */ \ + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ + 1 /* eir_server_impl_id array length */ + \ + 0 /* ignored eir_server_impl_id contents */) +#define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) +#define decode_channel_attrs_maxsz (6 + \ + 1 /* ca_rdma_ird.len */ + \ + 1 /* ca_rdma_ird */) +#define encode_create_session_maxsz (op_encode_hdr_maxsz + \ + 2 /* csa_clientid */ + \ + 1 /* csa_sequence */ + \ + 1 /* csa_flags */ + \ + encode_channel_attrs_maxsz + \ + encode_channel_attrs_maxsz + \ + 1 /* csa_cb_program */ + \ + 1 /* csa_sec_parms.len (1) */ + \ + 1 /* cb_secflavor (AUTH_SYS) */ + \ + 1 /* stamp */ + \ + 1 /* machinename.len */ + \ + XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ + 1 /* uid */ + \ + 1 /* gid */ + \ + 1 /* gids.len (0) */) +#define decode_create_session_maxsz (op_decode_hdr_maxsz + \ + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ + 1 /* csr_sequence */ + \ + 1 /* csr_flags */ + \ + decode_channel_attrs_maxsz + \ + decode_channel_attrs_maxsz) +#define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) +#define decode_destroy_session_maxsz (op_decode_hdr_maxsz) +#define encode_sequence_maxsz (op_encode_hdr_maxsz + \ + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) +#define decode_sequence_maxsz (op_decode_hdr_maxsz + \ + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) +#else /* CONFIG_NFS_V4_1 */ +#define encode_sequence_maxsz 0 +#define decode_sequence_maxsz 0 +#endif /* CONFIG_NFS_V4_1 */ + #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 7) + encode_read_maxsz) #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 2) + decode_read_maxsz) #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz) + encode_readlink_maxsz) #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz) + decode_readlink_maxsz) #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 9) + encode_readdir_maxsz) #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 2) + decode_readdir_maxsz) #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 8 + \ + encode_write_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 4 + \ + decode_write_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 3 + \ + encode_commit_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 2 + \ + decode_commit_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ - encode_putfh_maxsz + \ - op_encode_hdr_maxsz + \ - 13 + 3 + 2 + 64 + \ - encode_getattr_maxsz + \ - encode_getfh_maxsz) + encode_sequence_maxsz + \ + encode_putfh_maxsz + \ + encode_savefh_maxsz + \ + encode_open_maxsz + \ + encode_getfh_maxsz + \ + encode_getattr_maxsz + \ + encode_restorefh_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ - decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ - decode_getattr_maxsz + \ - decode_getfh_maxsz) -#define NFS4_enc_open_confirm_sz \ - (compound_encode_hdr_maxsz + \ - encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 5) -#define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ - decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 4) + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_savefh_maxsz + \ + decode_open_maxsz + \ + decode_getfh_maxsz + \ + decode_getattr_maxsz + \ + decode_restorefh_maxsz + \ + decode_getattr_maxsz) +#define NFS4_enc_open_confirm_sz \ + (compound_encode_hdr_maxsz + \ + encode_putfh_maxsz + \ + encode_open_confirm_maxsz) +#define NFS4_dec_open_confirm_sz \ + (compound_decode_hdr_maxsz + \ + decode_putfh_maxsz + \ + decode_open_confirm_maxsz) #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + \ - 11) + encode_open_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + \ - 4 + 5 + 2 + 3) + decode_open_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_open_downgrade_sz \ (compound_encode_hdr_maxsz + \ - encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 7 + \ - encode_getattr_maxsz) + encode_sequence_maxsz + \ + encode_putfh_maxsz + \ + encode_open_downgrade_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_open_downgrade_sz \ (compound_decode_hdr_maxsz + \ - decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 4 + \ - decode_getattr_maxsz) -#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ - encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 5 + \ - encode_getattr_maxsz) -#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ - decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 4 + \ - decode_getattr_maxsz) -#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ - encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 4 + \ - nfs4_fattr_maxsz + \ - encode_getattr_maxsz) -#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ - decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 3 + \ - nfs4_fattr_maxsz) + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_open_downgrade_maxsz + \ + decode_getattr_maxsz) +#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ + encode_putfh_maxsz + \ + encode_close_maxsz + \ + encode_getattr_maxsz) +#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_close_maxsz + \ + decode_getattr_maxsz) +#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ + encode_putfh_maxsz + \ + encode_setattr_maxsz + \ + encode_getattr_maxsz) +#define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_setattr_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_fsinfo_maxsz) #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_fsinfo_maxsz) #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ @@ -251,73 +445,81 @@ static int nfs4_stat_to_errno(int); decode_putrootfh_maxsz + \ decode_fsinfo_maxsz) #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - encode_getattr_maxsz + \ - op_encode_hdr_maxsz + \ - 1 + 1 + 2 + 2 + \ - 1 + 4 + 1 + 2 + \ - owner_id_maxsz) + encode_lock_maxsz) #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - decode_getattr_maxsz + \ - op_decode_hdr_maxsz + \ - 2 + 2 + 1 + 2 + \ - owner_id_maxsz) + decode_lock_maxsz) #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - encode_getattr_maxsz + \ - op_encode_hdr_maxsz + \ - 1 + 2 + 2 + 2 + \ - owner_id_maxsz) -#define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) + encode_lockt_maxsz) +#define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_lockt_maxsz) #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - encode_getattr_maxsz + \ - op_encode_hdr_maxsz + \ - 1 + 1 + 4 + 2 + 2) + encode_locku_maxsz) #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - decode_getattr_maxsz + \ - op_decode_hdr_maxsz + 4) + decode_locku_maxsz) #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 1) + encode_access_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 2) + decode_access_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_lookup_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + \ + decode_lookup_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putrootfh_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putrootfh_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_remove_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 5 + \ + decode_remove_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ @@ -326,6 +528,7 @@ static int nfs4_stat_to_errno(int); encode_restorefh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ @@ -334,6 +537,7 @@ static int nfs4_stat_to_errno(int); decode_restorefh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ @@ -342,6 +546,7 @@ static int nfs4_stat_to_errno(int); encode_restorefh_maxsz + \ decode_getattr_maxsz) #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ @@ -350,16 +555,19 @@ static int nfs4_stat_to_errno(int); decode_restorefh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_symlink_maxsz + \ encode_getattr_maxsz + \ encode_getfh_maxsz) #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_symlink_maxsz + \ decode_getattr_maxsz + \ decode_getfh_maxsz) #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_create_maxsz + \ @@ -368,6 +576,7 @@ static int nfs4_stat_to_errno(int); encode_restorefh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_create_maxsz + \ @@ -376,101 +585,128 @@ static int nfs4_stat_to_errno(int); decode_restorefh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - encode_getattr_maxsz) + encode_statfs_maxsz) #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + 12) + decode_statfs_maxsz) #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_delegreturn_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_delegreturn_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - encode_getattr_maxsz) + encode_getacl_maxsz) #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + \ - nfs4_fattr_bitmap_maxsz + 1) + decode_getacl_maxsz) #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - op_encode_hdr_maxsz + 4 + \ - nfs4_fattr_bitmap_maxsz + 1) + encode_setacl_maxsz) #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) + decode_setacl_maxsz) #define NFS4_enc_fs_locations_sz \ (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ encode_putfh_maxsz + \ - encode_getattr_maxsz) + encode_lookup_maxsz + \ + encode_fs_locations_maxsz) #define NFS4_dec_fs_locations_sz \ (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ decode_putfh_maxsz + \ - op_decode_hdr_maxsz + \ - nfs4_fattr_bitmap_maxsz) - -static struct { - unsigned int mode; - unsigned int nfs2type; -} nfs_type2fmt[] = { - { 0, NFNON }, - { S_IFREG, NFREG }, - { S_IFDIR, NFDIR }, - { S_IFBLK, NFBLK }, - { S_IFCHR, NFCHR }, - { S_IFLNK, NFLNK }, - { S_IFSOCK, NFSOCK }, - { S_IFIFO, NFFIFO }, - { 0, NFNON }, - { 0, NFNON }, + decode_lookup_maxsz + \ + decode_fs_locations_maxsz) +#if defined(CONFIG_NFS_V4_1) +#define NFS4_enc_exchange_id_sz \ + (compound_encode_hdr_maxsz + \ + encode_exchange_id_maxsz) +#define NFS4_dec_exchange_id_sz \ + (compound_decode_hdr_maxsz + \ + decode_exchange_id_maxsz) +#define NFS4_enc_create_session_sz \ + (compound_encode_hdr_maxsz + \ + encode_create_session_maxsz) +#define NFS4_dec_create_session_sz \ + (compound_decode_hdr_maxsz + \ + decode_create_session_maxsz) +#define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ + encode_destroy_session_maxsz) +#define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ + decode_destroy_session_maxsz) +#define NFS4_enc_sequence_sz \ + (compound_decode_hdr_maxsz + \ + encode_sequence_maxsz) +#define NFS4_dec_sequence_sz \ + (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz) +#define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ + encode_putrootfh_maxsz + \ + encode_fsinfo_maxsz) +#define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putrootfh_maxsz + \ + decode_fsinfo_maxsz) +#endif /* CONFIG_NFS_V4_1 */ + +static const umode_t nfs_type2fmt[] = { + [NF4BAD] = 0, + [NF4REG] = S_IFREG, + [NF4DIR] = S_IFDIR, + [NF4BLK] = S_IFBLK, + [NF4CHR] = S_IFCHR, + [NF4LNK] = S_IFLNK, + [NF4SOCK] = S_IFSOCK, + [NF4FIFO] = S_IFIFO, + [NF4ATTRDIR] = 0, + [NF4NAMEDATTR] = 0, }; struct compound_hdr { int32_t status; uint32_t nops; + __be32 * nops_p; uint32_t taglen; char * tag; + uint32_t replen; /* expected reply words */ + u32 minorversion; }; -/* - * START OF "GENERIC" ENCODE ROUTINES. - * These may look a little ugly since they are imported from a "generic" - * set of XDR encode/decode routines which are intended to be shared by - * all of our NFSv4 implementations (OpenBSD, MacOS X...). - * - * If the pain of reading these is too great, it should be a straightforward - * task to translate them into Linux-specific versions which are more - * consistent with the style used in NFSv2/v3... - */ -#define WRITE32(n) *p++ = htonl(n) -#define WRITE64(n) do { \ - *p++ = htonl((uint32_t)((n) >> 32)); \ - *p++ = htonl((uint32_t)(n)); \ -} while (0) -#define WRITEMEM(ptr,nbytes) do { \ - p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ -} while (0) - -#define RESERVE_SPACE(nbytes) do { \ - p = xdr_reserve_space(xdr, nbytes); \ - if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ - BUG_ON(!p); \ -} while (0) +static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) +{ + __be32 *p = xdr_reserve_space(xdr, nbytes); + BUG_ON(!p); + return p; +} static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) { @@ -481,18 +717,31 @@ static void encode_string(struct xdr_stream *xdr, unsigned int len, const char * xdr_encode_opaque(p, str, len); } -static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) +static void encode_compound_hdr(struct xdr_stream *xdr, + struct rpc_rqst *req, + struct compound_hdr *hdr) { __be32 *p; + struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; + + /* initialize running count of expected bytes in reply. + * NOTE: the replied tag SHOULD be the same is the one sent, + * but this is not required as a MUST for the server to do so. */ + hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); - RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); - WRITE32(hdr->taglen); - WRITEMEM(hdr->tag, hdr->taglen); - WRITE32(NFS4_MINOR_VERSION); - WRITE32(hdr->nops); - return 0; + p = reserve_space(xdr, 4 + hdr->taglen + 8); + p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); + *p++ = cpu_to_be32(hdr->minorversion); + hdr->nops_p = p; + *p = cpu_to_be32(hdr->nops); +} + +static void encode_nops(struct compound_hdr *hdr) +{ + BUG_ON(hdr->nops > NFS4_MAX_OPS); + *hdr->nops_p = htonl(hdr->nops); } static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) @@ -504,7 +753,7 @@ static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *ve xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); } -static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) +static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) { char owner_name[IDMAP_NAMESZ]; char owner_group[IDMAP_NAMESZ]; @@ -515,7 +764,6 @@ static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const s int len; uint32_t bmval0 = 0; uint32_t bmval1 = 0; - int status; /* * We reserve enough space to write the entire attribute buffer at once. @@ -534,8 +782,8 @@ static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const s if (iap->ia_valid & ATTR_UID) { owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); if (owner_namelen < 0) { - printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", - iap->ia_uid); + dprintk("nfs: couldn't resolve uid %d to string\n", + iap->ia_uid); /* XXX */ strcpy(owner_name, "nobody"); owner_namelen = sizeof("nobody") - 1; @@ -546,8 +794,8 @@ static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const s if (iap->ia_valid & ATTR_GID) { owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); if (owner_grouplen < 0) { - printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", - iap->ia_gid); + dprintk("nfs: couldn't resolve gid %d to string\n", + iap->ia_gid); strcpy(owner_group, "nobody"); owner_grouplen = sizeof("nobody") - 1; /* goto out; */ @@ -562,205 +810,200 @@ static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const s len += 16; else if (iap->ia_valid & ATTR_MTIME) len += 4; - RESERVE_SPACE(len); + p = reserve_space(xdr, len); /* * We write the bitmap length now, but leave the bitmap and the attribute * buffer length to be backfilled at the end of this routine. */ - WRITE32(2); + *p++ = cpu_to_be32(2); q = p; p += 3; if (iap->ia_valid & ATTR_SIZE) { bmval0 |= FATTR4_WORD0_SIZE; - WRITE64(iap->ia_size); + p = xdr_encode_hyper(p, iap->ia_size); } if (iap->ia_valid & ATTR_MODE) { bmval1 |= FATTR4_WORD1_MODE; - WRITE32(iap->ia_mode & S_IALLUGO); + *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); } if (iap->ia_valid & ATTR_UID) { bmval1 |= FATTR4_WORD1_OWNER; - WRITE32(owner_namelen); - WRITEMEM(owner_name, owner_namelen); + p = xdr_encode_opaque(p, owner_name, owner_namelen); } if (iap->ia_valid & ATTR_GID) { bmval1 |= FATTR4_WORD1_OWNER_GROUP; - WRITE32(owner_grouplen); - WRITEMEM(owner_group, owner_grouplen); + p = xdr_encode_opaque(p, owner_group, owner_grouplen); } if (iap->ia_valid & ATTR_ATIME_SET) { bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; - WRITE32(NFS4_SET_TO_CLIENT_TIME); - WRITE32(0); - WRITE32(iap->ia_mtime.tv_sec); - WRITE32(iap->ia_mtime.tv_nsec); + *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); + *p++ = cpu_to_be32(0); + *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); + *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); } else if (iap->ia_valid & ATTR_ATIME) { bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; - WRITE32(NFS4_SET_TO_SERVER_TIME); + *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); } if (iap->ia_valid & ATTR_MTIME_SET) { bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; - WRITE32(NFS4_SET_TO_CLIENT_TIME); - WRITE32(0); - WRITE32(iap->ia_mtime.tv_sec); - WRITE32(iap->ia_mtime.tv_nsec); + *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); + *p++ = cpu_to_be32(0); + *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); + *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); } else if (iap->ia_valid & ATTR_MTIME) { bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; - WRITE32(NFS4_SET_TO_SERVER_TIME); + *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); } - + /* * Now we backfill the bitmap and the attribute buffer length. */ if (len != ((char *)p - (char *)q) + 4) { - printk ("encode_attr: Attr length calculation error! %u != %Zu\n", + printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", len, ((char *)p - (char *)q) + 4); BUG(); } len = (char *)p - (char *)q - 12; *q++ = htonl(bmval0); *q++ = htonl(bmval1); - *q++ = htonl(len); + *q = htonl(len); - status = 0; /* out: */ - return status; } -static int encode_access(struct xdr_stream *xdr, u32 access) +static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(8); - WRITE32(OP_ACCESS); - WRITE32(access); - - return 0; + p = reserve_space(xdr, 8); + *p++ = cpu_to_be32(OP_ACCESS); + *p = cpu_to_be32(access); + hdr->nops++; + hdr->replen += decode_access_maxsz; } -static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) +static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(8+NFS4_STATEID_SIZE); - WRITE32(OP_CLOSE); - WRITE32(arg->seqid->sequence->counter); - WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); - - return 0; + p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(OP_CLOSE); + *p++ = cpu_to_be32(arg->seqid->sequence->counter); + xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); + hdr->nops++; + hdr->replen += decode_close_maxsz; } -static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) +static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) { __be32 *p; - - RESERVE_SPACE(16); - WRITE32(OP_COMMIT); - WRITE64(args->offset); - WRITE32(args->count); - return 0; + p = reserve_space(xdr, 16); + *p++ = cpu_to_be32(OP_COMMIT); + p = xdr_encode_hyper(p, args->offset); + *p = cpu_to_be32(args->count); + hdr->nops++; + hdr->replen += decode_commit_maxsz; } -static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) +static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) { __be32 *p; - - RESERVE_SPACE(8); - WRITE32(OP_CREATE); - WRITE32(create->ftype); + + p = reserve_space(xdr, 8); + *p++ = cpu_to_be32(OP_CREATE); + *p = cpu_to_be32(create->ftype); switch (create->ftype) { case NF4LNK: - RESERVE_SPACE(4); - WRITE32(create->u.symlink.len); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(create->u.symlink.len); xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); break; case NF4BLK: case NF4CHR: - RESERVE_SPACE(8); - WRITE32(create->u.device.specdata1); - WRITE32(create->u.device.specdata2); + p = reserve_space(xdr, 8); + *p++ = cpu_to_be32(create->u.device.specdata1); + *p = cpu_to_be32(create->u.device.specdata2); break; default: break; } - RESERVE_SPACE(4 + create->name->len); - WRITE32(create->name->len); - WRITEMEM(create->name->name, create->name->len); + encode_string(xdr, create->name->len, create->name->name); + hdr->nops++; + hdr->replen += decode_create_maxsz; - return encode_attrs(xdr, create->attrs, create->server); + encode_attrs(xdr, create->attrs, create->server); } -static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) +static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) { - __be32 *p; + __be32 *p; - RESERVE_SPACE(12); - WRITE32(OP_GETATTR); - WRITE32(1); - WRITE32(bitmap); - return 0; + p = reserve_space(xdr, 12); + *p++ = cpu_to_be32(OP_GETATTR); + *p++ = cpu_to_be32(1); + *p = cpu_to_be32(bitmap); + hdr->nops++; + hdr->replen += decode_getattr_maxsz; } -static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) +static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) { - __be32 *p; + __be32 *p; - RESERVE_SPACE(16); - WRITE32(OP_GETATTR); - WRITE32(2); - WRITE32(bm0); - WRITE32(bm1); - return 0; + p = reserve_space(xdr, 16); + *p++ = cpu_to_be32(OP_GETATTR); + *p++ = cpu_to_be32(2); + *p++ = cpu_to_be32(bm0); + *p = cpu_to_be32(bm1); + hdr->nops++; + hdr->replen += decode_getattr_maxsz; } -static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) +static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { - return encode_getattr_two(xdr, - bitmask[0] & nfs4_fattr_bitmap[0], - bitmask[1] & nfs4_fattr_bitmap[1]); + encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], + bitmask[1] & nfs4_fattr_bitmap[1], hdr); } -static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) +static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { - return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], - bitmask[1] & nfs4_fsinfo_bitmap[1]); + encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], + bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); } -static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) +static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { - return encode_getattr_two(xdr, - bitmask[0] & nfs4_fs_locations_bitmap[0], - bitmask[1] & nfs4_fs_locations_bitmap[1]); + encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], + bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); } -static int encode_getfh(struct xdr_stream *xdr) +static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4); - WRITE32(OP_GETFH); - - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_GETFH); + hdr->nops++; + hdr->replen += decode_getfh_maxsz; } -static int encode_link(struct xdr_stream *xdr, const struct qstr *name) +static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(8 + name->len); - WRITE32(OP_LINK); - WRITE32(name->len); - WRITEMEM(name->name, name->len); - - return 0; + p = reserve_space(xdr, 8 + name->len); + *p++ = cpu_to_be32(OP_LINK); + xdr_encode_opaque(p, name->name, name->len); + hdr->nops++; + hdr->replen += decode_link_maxsz; } static inline int nfs4_lock_type(struct file_lock *fl, int block) @@ -781,98 +1024,99 @@ static inline uint64_t nfs4_lock_length(struct file_lock *fl) * opcode,type,reclaim,offset,length,new_lock_owner = 32 * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 */ -static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) +static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(32); - WRITE32(OP_LOCK); - WRITE32(nfs4_lock_type(args->fl, args->block)); - WRITE32(args->reclaim); - WRITE64(args->fl->fl_start); - WRITE64(nfs4_lock_length(args->fl)); - WRITE32(args->new_lock_owner); + p = reserve_space(xdr, 32); + *p++ = cpu_to_be32(OP_LOCK); + *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); + *p++ = cpu_to_be32(args->reclaim); + p = xdr_encode_hyper(p, args->fl->fl_start); + p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); + *p = cpu_to_be32(args->new_lock_owner); if (args->new_lock_owner){ - RESERVE_SPACE(4+NFS4_STATEID_SIZE+20); - WRITE32(args->open_seqid->sequence->counter); - WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); - WRITE32(args->lock_seqid->sequence->counter); - WRITE64(args->lock_owner.clientid); - WRITE32(4); - WRITE32(args->lock_owner.id); + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); + *p++ = cpu_to_be32(args->open_seqid->sequence->counter); + p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); + p = xdr_encode_hyper(p, args->lock_owner.clientid); + *p++ = cpu_to_be32(16); + p = xdr_encode_opaque_fixed(p, "lock id:", 8); + xdr_encode_hyper(p, args->lock_owner.id); } else { - RESERVE_SPACE(NFS4_STATEID_SIZE+4); - WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); - WRITE32(args->lock_seqid->sequence->counter); + p = reserve_space(xdr, NFS4_STATEID_SIZE+4); + p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); + *p = cpu_to_be32(args->lock_seqid->sequence->counter); } - - return 0; + hdr->nops++; + hdr->replen += decode_lock_maxsz; } -static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) +static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(40); - WRITE32(OP_LOCKT); - WRITE32(nfs4_lock_type(args->fl, 0)); - WRITE64(args->fl->fl_start); - WRITE64(nfs4_lock_length(args->fl)); - WRITE64(args->lock_owner.clientid); - WRITE32(4); - WRITE32(args->lock_owner.id); - - return 0; + p = reserve_space(xdr, 52); + *p++ = cpu_to_be32(OP_LOCKT); + *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); + p = xdr_encode_hyper(p, args->fl->fl_start); + p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); + p = xdr_encode_hyper(p, args->lock_owner.clientid); + *p++ = cpu_to_be32(16); + p = xdr_encode_opaque_fixed(p, "lock id:", 8); + xdr_encode_hyper(p, args->lock_owner.id); + hdr->nops++; + hdr->replen += decode_lockt_maxsz; } -static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) +static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); - WRITE32(OP_LOCKU); - WRITE32(nfs4_lock_type(args->fl, 0)); - WRITE32(args->seqid->sequence->counter); - WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); - WRITE64(args->fl->fl_start); - WRITE64(nfs4_lock_length(args->fl)); - - return 0; + p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); + *p++ = cpu_to_be32(OP_LOCKU); + *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); + *p++ = cpu_to_be32(args->seqid->sequence->counter); + p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); + p = xdr_encode_hyper(p, args->fl->fl_start); + xdr_encode_hyper(p, nfs4_lock_length(args->fl)); + hdr->nops++; + hdr->replen += decode_locku_maxsz; } -static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) +static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { int len = name->len; __be32 *p; - RESERVE_SPACE(8 + len); - WRITE32(OP_LOOKUP); - WRITE32(len); - WRITEMEM(name->name, len); - - return 0; + p = reserve_space(xdr, 8 + len); + *p++ = cpu_to_be32(OP_LOOKUP); + xdr_encode_opaque(p, name->name, len); + hdr->nops++; + hdr->replen += decode_lookup_maxsz; } -static void encode_share_access(struct xdr_stream *xdr, int open_flags) +static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) { __be32 *p; - RESERVE_SPACE(8); - switch (open_flags & (FMODE_READ|FMODE_WRITE)) { - case FMODE_READ: - WRITE32(NFS4_SHARE_ACCESS_READ); - break; - case FMODE_WRITE: - WRITE32(NFS4_SHARE_ACCESS_WRITE); - break; - case FMODE_READ|FMODE_WRITE: - WRITE32(NFS4_SHARE_ACCESS_BOTH); - break; - default: - BUG(); + p = reserve_space(xdr, 8); + switch (fmode & (FMODE_READ|FMODE_WRITE)) { + case FMODE_READ: + *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); + break; + case FMODE_WRITE: + *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); + break; + case FMODE_READ|FMODE_WRITE: + *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); + break; + default: + *p++ = cpu_to_be32(0); } - WRITE32(0); /* for linux, share_deny = 0 always */ + *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ } static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) @@ -882,29 +1126,30 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, * owner 4 = 32 */ - RESERVE_SPACE(8); - WRITE32(OP_OPEN); - WRITE32(arg->seqid->sequence->counter); - encode_share_access(xdr, arg->open_flags); - RESERVE_SPACE(16); - WRITE64(arg->clientid); - WRITE32(4); - WRITE32(arg->id); + p = reserve_space(xdr, 8); + *p++ = cpu_to_be32(OP_OPEN); + *p = cpu_to_be32(arg->seqid->sequence->counter); + encode_share_access(xdr, arg->fmode); + p = reserve_space(xdr, 28); + p = xdr_encode_hyper(p, arg->clientid); + *p++ = cpu_to_be32(16); + p = xdr_encode_opaque_fixed(p, "open id:", 8); + xdr_encode_hyper(p, arg->id); } static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) { __be32 *p; - RESERVE_SPACE(4); + p = reserve_space(xdr, 4); switch(arg->open_flags & O_EXCL) { - case 0: - WRITE32(NFS4_CREATE_UNCHECKED); - encode_attrs(xdr, arg->u.attrs, arg->server); - break; - default: - WRITE32(NFS4_CREATE_EXCLUSIVE); - encode_nfs4_verifier(xdr, &arg->u.verifier); + case 0: + *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); + encode_attrs(xdr, arg->u.attrs, arg->server); + break; + default: + *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); + encode_nfs4_verifier(xdr, &arg->u.verifier); } } @@ -912,35 +1157,35 @@ static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *a { __be32 *p; - RESERVE_SPACE(4); + p = reserve_space(xdr, 4); switch (arg->open_flags & O_CREAT) { - case 0: - WRITE32(NFS4_OPEN_NOCREATE); - break; - default: - BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); - WRITE32(NFS4_OPEN_CREATE); - encode_createmode(xdr, arg); + case 0: + *p = cpu_to_be32(NFS4_OPEN_NOCREATE); + break; + default: + BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); + *p = cpu_to_be32(NFS4_OPEN_CREATE); + encode_createmode(xdr, arg); } } -static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) +static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) { __be32 *p; - RESERVE_SPACE(4); + p = reserve_space(xdr, 4); switch (delegation_type) { - case 0: - WRITE32(NFS4_OPEN_DELEGATE_NONE); - break; - case FMODE_READ: - WRITE32(NFS4_OPEN_DELEGATE_READ); - break; - case FMODE_WRITE|FMODE_READ: - WRITE32(NFS4_OPEN_DELEGATE_WRITE); - break; - default: - BUG(); + case 0: + *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); + break; + case FMODE_READ: + *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); + break; + case FMODE_WRITE|FMODE_READ: + *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); + break; + default: + BUG(); } } @@ -948,17 +1193,17 @@ static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr * { __be32 *p; - RESERVE_SPACE(4); - WRITE32(NFS4_OPEN_CLAIM_NULL); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); encode_string(xdr, name->len, name->name); } -static inline void encode_claim_previous(struct xdr_stream *xdr, int type) +static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) { __be32 *p; - RESERVE_SPACE(4); - WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); encode_delegation_type(xdr, type); } @@ -966,78 +1211,79 @@ static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struc { __be32 *p; - RESERVE_SPACE(4+NFS4_STATEID_SIZE); - WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); - WRITEMEM(stateid->data, NFS4_STATEID_SIZE); + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); + xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); encode_string(xdr, name->len, name->name); } -static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) +static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) { encode_openhdr(xdr, arg); encode_opentype(xdr, arg); switch (arg->claim) { - case NFS4_OPEN_CLAIM_NULL: - encode_claim_null(xdr, arg->name); - break; - case NFS4_OPEN_CLAIM_PREVIOUS: - encode_claim_previous(xdr, arg->u.delegation_type); - break; - case NFS4_OPEN_CLAIM_DELEGATE_CUR: - encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); - break; - default: - BUG(); + case NFS4_OPEN_CLAIM_NULL: + encode_claim_null(xdr, arg->name); + break; + case NFS4_OPEN_CLAIM_PREVIOUS: + encode_claim_previous(xdr, arg->u.delegation_type); + break; + case NFS4_OPEN_CLAIM_DELEGATE_CUR: + encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); + break; + default: + BUG(); } - return 0; + hdr->nops++; + hdr->replen += decode_open_maxsz; } -static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) +static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); - WRITE32(OP_OPEN_CONFIRM); - WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); - WRITE32(arg->seqid->sequence->counter); - - return 0; + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); + *p++ = cpu_to_be32(OP_OPEN_CONFIRM); + p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); + *p = cpu_to_be32(arg->seqid->sequence->counter); + hdr->nops++; + hdr->replen += decode_open_confirm_maxsz; } -static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) +static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); - WRITE32(OP_OPEN_DOWNGRADE); - WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); - WRITE32(arg->seqid->sequence->counter); - encode_share_access(xdr, arg->open_flags); - return 0; + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); + *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); + p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); + *p = cpu_to_be32(arg->seqid->sequence->counter); + encode_share_access(xdr, arg->fmode); + hdr->nops++; + hdr->replen += decode_open_downgrade_maxsz; } -static int -encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) +static void +encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) { int len = fh->size; __be32 *p; - RESERVE_SPACE(8 + len); - WRITE32(OP_PUTFH); - WRITE32(len); - WRITEMEM(fh->data, len); - - return 0; + p = reserve_space(xdr, 8 + len); + *p++ = cpu_to_be32(OP_PUTFH); + xdr_encode_opaque(p, fh->data, len); + hdr->nops++; + hdr->replen += decode_putfh_maxsz; } -static int encode_putrootfh(struct xdr_stream *xdr) +static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) { - __be32 *p; - - RESERVE_SPACE(4); - WRITE32(OP_PUTROOTFH); + __be32 *p; - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_PUTROOTFH); + hdr->nops++; + hdr->replen += decode_putrootfh_maxsz; } static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) @@ -1045,256 +1291,365 @@ static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context nfs4_stateid stateid; __be32 *p; - RESERVE_SPACE(NFS4_STATEID_SIZE); + p = reserve_space(xdr, NFS4_STATEID_SIZE); if (ctx->state != NULL) { nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); - WRITEMEM(stateid.data, NFS4_STATEID_SIZE); + xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); } else - WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); + xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); } -static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) +static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4); - WRITE32(OP_READ); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_READ); encode_stateid(xdr, args->context); - RESERVE_SPACE(12); - WRITE64(args->offset); - WRITE32(args->count); - - return 0; + p = reserve_space(xdr, 12); + p = xdr_encode_hyper(p, args->offset); + *p = cpu_to_be32(args->count); + hdr->nops++; + hdr->replen += decode_read_maxsz; } -static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) +static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) { - struct rpc_auth *auth = req->rq_task->tk_auth; uint32_t attrs[2] = { FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, FATTR4_WORD1_MOUNTED_ON_FILEID, }; - int replen; __be32 *p; - RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); - WRITE32(OP_READDIR); - WRITE64(readdir->cookie); - WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); - WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ - WRITE32(readdir->count); - WRITE32(2); + p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); + *p++ = cpu_to_be32(OP_READDIR); + p = xdr_encode_hyper(p, readdir->cookie); + p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); + *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ + *p++ = cpu_to_be32(readdir->count); + *p++ = cpu_to_be32(2); /* Switch to mounted_on_fileid if the server supports it */ if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) attrs[0] &= ~FATTR4_WORD0_FILEID; else attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; - WRITE32(attrs[0] & readdir->bitmask[0]); - WRITE32(attrs[1] & readdir->bitmask[1]); - dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", - __FUNCTION__, + *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); + *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); + hdr->nops++; + hdr->replen += decode_readdir_maxsz; + dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", + __func__, (unsigned long long)readdir->cookie, ((u32 *)readdir->verifier.data)[0], ((u32 *)readdir->verifier.data)[1], attrs[0] & readdir->bitmask[0], attrs[1] & readdir->bitmask[1]); - - /* set up reply kvec - * toplevel_status + taglen + rescount + OP_PUTFH + status - * + OP_READDIR + status + verifer(2) = 9 - */ - replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; - xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, - readdir->pgbase, readdir->count); - dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", - __FUNCTION__, replen, readdir->pages, - readdir->pgbase, readdir->count); - - return 0; } -static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) +static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) { - struct rpc_auth *auth = req->rq_task->tk_auth; - unsigned int replen; __be32 *p; - RESERVE_SPACE(4); - WRITE32(OP_READLINK); - - /* set up reply kvec - * toplevel_status + taglen + rescount + OP_PUTFH + status - * + OP_READLINK + status + string length = 8 - */ - replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; - xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, - readlink->pgbase, readlink->pglen); - - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_READLINK); + hdr->nops++; + hdr->replen += decode_readlink_maxsz; } -static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) +static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(8 + name->len); - WRITE32(OP_REMOVE); - WRITE32(name->len); - WRITEMEM(name->name, name->len); - - return 0; + p = reserve_space(xdr, 8 + name->len); + *p++ = cpu_to_be32(OP_REMOVE); + xdr_encode_opaque(p, name->name, name->len); + hdr->nops++; + hdr->replen += decode_remove_maxsz; } -static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) +static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(8 + oldname->len); - WRITE32(OP_RENAME); - WRITE32(oldname->len); - WRITEMEM(oldname->name, oldname->len); - - RESERVE_SPACE(4 + newname->len); - WRITE32(newname->len); - WRITEMEM(newname->name, newname->len); - - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_RENAME); + encode_string(xdr, oldname->len, oldname->name); + encode_string(xdr, newname->len, newname->name); + hdr->nops++; + hdr->replen += decode_rename_maxsz; } -static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) +static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(12); - WRITE32(OP_RENEW); - WRITE64(client_stateid->cl_clientid); - - return 0; + p = reserve_space(xdr, 12); + *p++ = cpu_to_be32(OP_RENEW); + xdr_encode_hyper(p, client_stateid->cl_clientid); + hdr->nops++; + hdr->replen += decode_renew_maxsz; } -static int -encode_restorefh(struct xdr_stream *xdr) +static void +encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4); - WRITE32(OP_RESTOREFH); - - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_RESTOREFH); + hdr->nops++; + hdr->replen += decode_restorefh_maxsz; } static int -encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) +encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4+NFS4_STATEID_SIZE); - WRITE32(OP_SETATTR); - WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); - RESERVE_SPACE(2*4); - WRITE32(1); - WRITE32(FATTR4_WORD0_ACL); + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(OP_SETATTR); + xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); + p = reserve_space(xdr, 2*4); + *p++ = cpu_to_be32(1); + *p = cpu_to_be32(FATTR4_WORD0_ACL); if (arg->acl_len % 4) return -EINVAL; - RESERVE_SPACE(4); - WRITE32(arg->acl_len); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(arg->acl_len); xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); + hdr->nops++; + hdr->replen += decode_setacl_maxsz; return 0; } -static int -encode_savefh(struct xdr_stream *xdr) +static void +encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4); - WRITE32(OP_SAVEFH); - - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_SAVEFH); + hdr->nops++; + hdr->replen += decode_savefh_maxsz; } -static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) +static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) { - int status; __be32 *p; - - RESERVE_SPACE(4+NFS4_STATEID_SIZE); - WRITE32(OP_SETATTR); - WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); - - if ((status = encode_attrs(xdr, arg->iap, server))) - return status; - return 0; + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); + *p++ = cpu_to_be32(OP_SETATTR); + xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); + hdr->nops++; + hdr->replen += decode_setattr_maxsz; + encode_attrs(xdr, arg->iap, server); } -static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) +static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); - WRITE32(OP_SETCLIENTID); - WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); + p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); + *p++ = cpu_to_be32(OP_SETCLIENTID); + xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); - RESERVE_SPACE(4); - WRITE32(setclientid->sc_prog); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(setclientid->sc_prog); encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); - RESERVE_SPACE(4); - WRITE32(setclientid->sc_cb_ident); - - return 0; + p = reserve_space(xdr, 4); + *p = cpu_to_be32(setclientid->sc_cb_ident); + hdr->nops++; + hdr->replen += decode_setclientid_maxsz; } -static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) +static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) { - __be32 *p; - - RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); - WRITE32(OP_SETCLIENTID_CONFIRM); - WRITE64(client_state->cl_clientid); - WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); + __be32 *p; - return 0; + p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); + *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); + p = xdr_encode_hyper(p, client_state->cl_clientid); + xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); + hdr->nops++; + hdr->replen += decode_setclientid_confirm_maxsz; } -static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) +static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4); - WRITE32(OP_WRITE); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_WRITE); encode_stateid(xdr, args->context); - RESERVE_SPACE(16); - WRITE64(args->offset); - WRITE32(args->stable); - WRITE32(args->count); + p = reserve_space(xdr, 16); + p = xdr_encode_hyper(p, args->offset); + *p++ = cpu_to_be32(args->stable); + *p = cpu_to_be32(args->count); xdr_write_pages(xdr, args->pages, args->pgbase, args->count); + hdr->nops++; + hdr->replen += decode_write_maxsz; +} - return 0; +static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) +{ + __be32 *p; + + p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); + + *p++ = cpu_to_be32(OP_DELEGRETURN); + xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); + hdr->nops++; + hdr->replen += decode_delegreturn_maxsz; } -static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) +#if defined(CONFIG_NFS_V4_1) +/* NFSv4.1 operations */ +static void encode_exchange_id(struct xdr_stream *xdr, + struct nfs41_exchange_id_args *args, + struct compound_hdr *hdr) { __be32 *p; - RESERVE_SPACE(4+NFS4_STATEID_SIZE); + p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); + *p++ = cpu_to_be32(OP_EXCHANGE_ID); + xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); - WRITE32(OP_DELEGRETURN); - WRITEMEM(stateid->data, NFS4_STATEID_SIZE); - return 0; + encode_string(xdr, args->id_len, args->id); + + p = reserve_space(xdr, 12); + *p++ = cpu_to_be32(args->flags); + *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ + *p = cpu_to_be32(0); /* zero length implementation id array */ + hdr->nops++; + hdr->replen += decode_exchange_id_maxsz; +} + +static void encode_create_session(struct xdr_stream *xdr, + struct nfs41_create_session_args *args, + struct compound_hdr *hdr) +{ + __be32 *p; + char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; + uint32_t len; + struct nfs_client *clp = args->client; + + len = scnprintf(machine_name, sizeof(machine_name), "%s", + clp->cl_ipaddr); + + p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); + *p++ = cpu_to_be32(OP_CREATE_SESSION); + p = xdr_encode_hyper(p, clp->cl_ex_clid); + *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ + *p++ = cpu_to_be32(args->flags); /*flags */ + + /* Fore Channel */ + *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ + *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ + *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ + *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ + *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ + *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ + *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ + + /* Back Channel */ + *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ + *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ + *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ + *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ + *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ + *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ + *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ + + *p++ = cpu_to_be32(args->cb_program); /* cb_program */ + *p++ = cpu_to_be32(1); + *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ + + /* authsys_parms rfc1831 */ + *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ + p = xdr_encode_opaque(p, machine_name, len); + *p++ = cpu_to_be32(0); /* UID */ + *p++ = cpu_to_be32(0); /* GID */ + *p = cpu_to_be32(0); /* No more gids */ + hdr->nops++; + hdr->replen += decode_create_session_maxsz; +} + +static void encode_destroy_session(struct xdr_stream *xdr, + struct nfs4_session *session, + struct compound_hdr *hdr) +{ + __be32 *p; + p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); + *p++ = cpu_to_be32(OP_DESTROY_SESSION); + xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); + hdr->nops++; + hdr->replen += decode_destroy_session_maxsz; +} +#endif /* CONFIG_NFS_V4_1 */ + +static void encode_sequence(struct xdr_stream *xdr, + const struct nfs4_sequence_args *args, + struct compound_hdr *hdr) +{ +#if defined(CONFIG_NFS_V4_1) + struct nfs4_session *session = args->sa_session; + struct nfs4_slot_table *tp; + struct nfs4_slot *slot; + __be32 *p; + + if (!session) + return; + tp = &session->fc_slot_table; + + WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); + slot = tp->slots + args->sa_slotid; + + p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); + *p++ = cpu_to_be32(OP_SEQUENCE); + + /* + * Sessionid + seqid + slotid + max slotid + cache_this + */ + dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " + "max_slotid=%d cache_this=%d\n", + __func__, + ((u32 *)session->sess_id.data)[0], + ((u32 *)session->sess_id.data)[1], + ((u32 *)session->sess_id.data)[2], + ((u32 *)session->sess_id.data)[3], + slot->seq_nr, args->sa_slotid, + tp->highest_used_slotid, args->sa_cache_this); + p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); + *p++ = cpu_to_be32(slot->seq_nr); + *p++ = cpu_to_be32(args->sa_slotid); + *p++ = cpu_to_be32(tp->highest_used_slotid); + *p = cpu_to_be32(args->sa_cache_this); + hdr->nops++; + hdr->replen += decode_sequence_maxsz; +#endif /* CONFIG_NFS_V4_1 */ } + /* * END OF "GENERIC" ENCODE ROUTINES. */ +static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) +{ +#if defined(CONFIG_NFS_V4_1) + if (args->sa_session) + return args->sa_session->clp->cl_minorversion; +#endif /* CONFIG_NFS_V4_1 */ + return 0; +} + /* * Encode an ACCESS request */ @@ -1302,15 +1657,17 @@ static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->fh)) == 0) - status = encode_access(&xdr, args->access); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_access(&xdr, args->access, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1320,21 +1677,18 @@ static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 4, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) - goto out; - if ((status = encode_lookup(&xdr, args->name)) != 0) - goto out; - if ((status = encode_getfh(&xdr)) != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->dir_fh, &hdr); + encode_lookup(&xdr, args->name, &hdr); + encode_getfh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1344,40 +1698,37 @@ static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struc { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putrootfh(&xdr)) != 0) - goto out; - if ((status = encode_getfh(&xdr)) == 0) - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putrootfh(&xdr, &hdr); + encode_getfh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* * Encode REMOVE request */ -static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs4_remove_arg *args) +static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->fh)) != 0) - goto out; - if ((status = encode_remove(&xdr, args->name)) != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_remove(&xdr, &args->name, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1387,27 +1738,21 @@ static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 7, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->old_dir)) != 0) - goto out; - if ((status = encode_savefh(&xdr)) != 0) - goto out; - if ((status = encode_putfh(&xdr, args->new_dir)) != 0) - goto out; - if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) - goto out; - if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) - goto out; - if ((status = encode_restorefh(&xdr)) != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->old_dir, &hdr); + encode_savefh(&xdr, &hdr); + encode_putfh(&xdr, args->new_dir, &hdr); + encode_rename(&xdr, args->old_name, args->new_name, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_restorefh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1417,27 +1762,21 @@ static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_ { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 7, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->fh)) != 0) - goto out; - if ((status = encode_savefh(&xdr)) != 0) - goto out; - if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) - goto out; - if ((status = encode_link(&xdr, args->name)) != 0) - goto out; - if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) - goto out; - if ((status = encode_restorefh(&xdr)) != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_savefh(&xdr, &hdr); + encode_putfh(&xdr, args->dir_fh, &hdr); + encode_link(&xdr, args->name, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_restorefh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1447,27 +1786,21 @@ static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 7, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) - goto out; - if ((status = encode_savefh(&xdr)) != 0) - goto out; - if ((status = encode_create(&xdr, args)) != 0) - goto out; - if ((status = encode_getfh(&xdr)) != 0) - goto out; - if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) - goto out; - if ((status = encode_restorefh(&xdr)) != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->dir_fh, &hdr); + encode_savefh(&xdr, &hdr); + encode_create(&xdr, args, &hdr); + encode_getfh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_restorefh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1485,15 +1818,16 @@ static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nf { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->fh)) == 0) - status = encode_getfattr(&xdr, args->bitmask); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1501,23 +1835,19 @@ static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nf */ static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) { - struct xdr_stream xdr; - struct compound_hdr hdr = { - .nops = 3, - }; - int status; - - xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_close(&xdr, args); - if (status != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->seq_args), + }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_close(&xdr, args, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1527,33 +1857,21 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openarg { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 7, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_savefh(&xdr); - if (status) - goto out; - status = encode_open(&xdr, args); - if (status) - goto out; - status = encode_getfh(&xdr); - if (status) - goto out; - status = encode_getfattr(&xdr, args->bitmask); - if (status) - goto out; - status = encode_restorefh(&xdr); - if (status) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_savefh(&xdr, &hdr); + encode_open(&xdr, args, &hdr); + encode_getfh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_restorefh(&xdr, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1563,18 +1881,15 @@ static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .nops = 0, }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_open_confirm(&xdr, args); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_open_confirm(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1584,21 +1899,17 @@ static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_ { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_open(&xdr, args); - if (status) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_open(&xdr, args, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1608,21 +1919,17 @@ static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct n { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_open_downgrade(&xdr, args); - if (status != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_open_downgrade(&xdr, args, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1632,18 +1939,16 @@ static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_ar { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_lock(&xdr, args); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_lock(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1653,18 +1958,16 @@ static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_ { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_lockt(&xdr, args); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_lockt(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1674,18 +1977,16 @@ static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_ { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_locku(&xdr, args); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_locku(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1695,18 +1996,19 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_readlink(&xdr, args, req); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_readlink(&xdr, args, req, &hdr); + + xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, + args->pgbase, args->pglen); + encode_nops(&hdr); + return 0; } /* @@ -1716,18 +2018,22 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_readdir(&xdr, args, req); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_readdir(&xdr, args, req, &hdr); + + xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, + args->pgbase, args->count); + dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", + __func__, hdr.replen << 2, args->pages, + args->pgbase, args->count); + encode_nops(&hdr); + return 0; } /* @@ -1735,56 +2041,42 @@ out: */ static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) { - struct rpc_auth *auth = req->rq_task->tk_auth; struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int replen, status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_read(&xdr, args); - if (status) - goto out; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_read(&xdr, args, &hdr); - /* set up reply kvec - * toplevel status + taglen=0 + rescount + OP_PUTFH + status - * + OP_READ + status + eof + datalen = 9 - */ - replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; - xdr_inline_pages(&req->rq_rcv_buf, replen, + xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, args->pgbase, args->count); -out: - return status; + req->rq_rcv_buf.flags |= XDRBUF_READ; + encode_nops(&hdr); + return 0; } /* * Encode an SETATTR request */ static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) - { - struct xdr_stream xdr; - struct compound_hdr hdr = { - .nops = 3, - }; - int status; - - xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if(status) - goto out; - status = encode_setattr(&xdr, args, args->server); - if(status) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->seq_args), + }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_setattr(&xdr, args, args->server, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1795,24 +2087,22 @@ nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, struct nfs_getaclargs *args) { struct xdr_stream xdr; - struct rpc_auth *auth = req->rq_task->tk_auth; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int replen, status; + uint32_t replen; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); - /* set up reply buffer: */ - replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; - xdr_inline_pages(&req->rq_rcv_buf, replen, + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; + encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); + + xdr_inline_pages(&req->rq_rcv_buf, replen << 2, args->acl_pages, args->acl_pgbase, args->acl_len); -out: - return status; + encode_nops(&hdr); + return 0; } /* @@ -1822,21 +2112,18 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writea { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_write(&xdr, args); - if (status) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_write(&xdr, args, &hdr); + req->rq_snd_buf.flags |= XDRBUF_WRITE; + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1846,21 +2133,17 @@ static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_write { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_commit(&xdr, args); - if (status) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_commit(&xdr, args, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1870,16 +2153,16 @@ static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsin { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (!status) - status = encode_fsinfo(&xdr, args->bitmask); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_fsinfo(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1889,17 +2172,17 @@ static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct n { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (!status) - status = encode_getattr_one(&xdr, - args->bitmask[0] & nfs4_pathconf_bitmap[0]); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], + &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1909,40 +2192,40 @@ static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status == 0) - status = encode_getattr_two(&xdr, - args->bitmask[0] & nfs4_statfs_bitmap[0], - args->bitmask[1] & nfs4_statfs_bitmap[1]); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], + args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); + encode_nops(&hdr); + return 0; } /* * GETATTR_BITMAP request */ -static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) +static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, + struct nfs4_server_caps_arg *args) { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, fhandle); - if (status == 0) - status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| - FATTR4_WORD0_LINK_SUPPORT| - FATTR4_WORD0_SYMLINK_SUPPORT| - FATTR4_WORD0_ACLSUPPORT); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fhandle, &hdr); + encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| + FATTR4_WORD0_LINK_SUPPORT| + FATTR4_WORD0_SYMLINK_SUPPORT| + FATTR4_WORD0_ACLSUPPORT, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1952,12 +2235,14 @@ static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 1, + .nops = 0, }; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - return encode_renew(&xdr, clp); + encode_compound_hdr(&xdr, req, &hdr); + encode_renew(&xdr, clp, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1967,12 +2252,14 @@ static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4 { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 1, + .nops = 0, }; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - return encode_setclientid(&xdr, sc); + encode_compound_hdr(&xdr, req, &hdr); + encode_setclientid(&xdr, sc, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -1982,19 +2269,17 @@ static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, str { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .nops = 0, }; const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_setclientid_confirm(&xdr, clp); - if (!status) - status = encode_putrootfh(&xdr); - if (!status) - status = encode_fsinfo(&xdr, lease_bitmap); - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_setclientid_confirm(&xdr, clp, &hdr); + encode_putrootfh(&xdr, &hdr); + encode_fsinfo(&xdr, lease_bitmap, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -2004,21 +2289,17 @@ static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struc { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fhandle); - if (status != 0) - goto out; - status = encode_delegreturn(&xdr, args->stateid); - if (status != 0) - goto out; - status = encode_getfattr(&xdr, args->bitmask); -out: - return status; + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fhandle, &hdr); + encode_delegreturn(&xdr, args->stateid, &hdr); + encode_getfattr(&xdr, args->bitmask, &hdr); + encode_nops(&hdr); + return 0; } /* @@ -2028,91 +2309,166 @@ static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 3, + .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; - struct rpc_auth *auth = req->rq_task->tk_auth; - int replen; - int status; + uint32_t replen; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) - goto out; - if ((status = encode_lookup(&xdr, args->name)) != 0) - goto out; - if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) - goto out; - /* set up reply - * toplevel_status + OP_PUTFH + status - * + OP_LOOKUP + status + OP_GETATTR + status = 7 - */ - replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; - xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->dir_fh, &hdr); + encode_lookup(&xdr, args->name, &hdr); + replen = hdr.replen; /* get the attribute into args->page */ + encode_fs_locations(&xdr, args->bitmask, &hdr); + + xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 0, PAGE_SIZE); -out: - return status; + encode_nops(&hdr); + return 0; } +#if defined(CONFIG_NFS_V4_1) /* - * START OF "GENERIC" DECODE ROUTINES. - * These may look a little ugly since they are imported from a "generic" - * set of XDR encode/decode routines which are intended to be shared by - * all of our NFSv4 implementations (OpenBSD, MacOS X...). - * - * If the pain of reading these is too great, it should be a straightforward - * task to translate them into Linux-specific versions which are more - * consistent with the style used in NFSv2/v3... + * EXCHANGE_ID request + */ +static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, + struct nfs41_exchange_id_args *args) +{ + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = args->client->cl_minorversion, + }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_exchange_id(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; +} + +/* + * a CREATE_SESSION request + */ +static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, + struct nfs41_create_session_args *args) +{ + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = args->client->cl_minorversion, + }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_create_session(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; +} + +/* + * a DESTROY_SESSION request + */ +static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, + struct nfs4_session *session) +{ + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = session->clp->cl_minorversion, + }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_destroy_session(&xdr, session, &hdr); + encode_nops(&hdr); + return 0; +} + +/* + * a SEQUENCE request + */ +static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, + struct nfs4_sequence_args *args) +{ + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(args), + }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, args, &hdr); + encode_nops(&hdr); + return 0; +} + +/* + * a GET_LEASE_TIME request */ -#define READ32(x) (x) = ntohl(*p++) -#define READ64(x) do { \ - (x) = (u64)ntohl(*p++) << 32; \ - (x) |= ntohl(*p++); \ -} while (0) -#define READTIME(x) do { \ - p++; \ - (x.tv_sec) = ntohl(*p++); \ - (x.tv_nsec) = ntohl(*p++); \ -} while (0) -#define COPYMEM(x,nbytes) do { \ - memcpy((x), p, nbytes); \ - p += XDR_QUADLEN(nbytes); \ -} while (0) - -#define READ_BUF(nbytes) do { \ - p = xdr_inline_decode(xdr, nbytes); \ - if (unlikely(!p)) { \ - printk(KERN_INFO "%s: prematurely hit end of receive" \ - " buffer\n", __FUNCTION__); \ - printk(KERN_INFO "%s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ - __FUNCTION__, xdr->p, nbytes, xdr->end); \ - return -EIO; \ - } \ -} while (0) +static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, + struct nfs4_get_lease_time_args *args) +{ + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), + }; + const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->la_seq_args, &hdr); + encode_putrootfh(&xdr, &hdr); + encode_fsinfo(&xdr, lease_bitmap, &hdr); + encode_nops(&hdr); + return 0; +} +#endif /* CONFIG_NFS_V4_1 */ + +static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) +{ + dprintk("nfs: %s: prematurely hit end of receive buffer. " + "Remaining buffer length is %tu words.\n", + func, xdr->end - xdr->p); +} static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) { __be32 *p; - READ_BUF(4); - READ32(*len); - READ_BUF(*len); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *len = be32_to_cpup(p); + p = xdr_inline_decode(xdr, *len); + if (unlikely(!p)) + goto out_overflow; *string = (char *)p; return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) { __be32 *p; - READ_BUF(8); - READ32(hdr->status); - READ32(hdr->taglen); - - READ_BUF(hdr->taglen + 4); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + hdr->status = be32_to_cpup(p++); + hdr->taglen = be32_to_cpup(p); + + p = xdr_inline_decode(xdr, hdr->taglen + 4); + if (unlikely(!p)) + goto out_overflow; hdr->tag = (char *)p; p += XDR_QUADLEN(hdr->taglen); - READ32(hdr->nops); + hdr->nops = be32_to_cpup(p); + if (unlikely(hdr->nops < 1)) + return nfs4_stat_to_errno(hdr->status); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) @@ -2121,19 +2477,23 @@ static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) uint32_t opnum; int32_t nfserr; - READ_BUF(8); - READ32(opnum); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + opnum = be32_to_cpup(p++); if (opnum != expected) { - printk(KERN_NOTICE - "nfs4_decode_op_hdr: Server returned operation" - " %d but we issued a request for %d\n", + dprintk("nfs: Server returned operation" + " %d but we issued a request for %d\n", opnum, expected); return -EIO; } - READ32(nfserr); + nfserr = be32_to_cpup(p); if (nfserr != NFS_OK) - return -nfs4_stat_to_errno(nfserr); + return nfs4_stat_to_errno(nfserr); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } /* Dummy routine */ @@ -2143,8 +2503,11 @@ static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) unsigned int strlen; char *str; - READ_BUF(12); - return decode_opaque_inline(xdr, &strlen, &str); + p = xdr_inline_decode(xdr, 12); + if (likely(p)) + return decode_opaque_inline(xdr, &strlen, &str); + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) @@ -2152,27 +2515,39 @@ static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) uint32_t bmlen; __be32 *p; - READ_BUF(4); - READ32(bmlen); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + bmlen = be32_to_cpup(p); bitmap[0] = bitmap[1] = 0; - READ_BUF((bmlen << 2)); + p = xdr_inline_decode(xdr, (bmlen << 2)); + if (unlikely(!p)) + goto out_overflow; if (bmlen > 0) { - READ32(bitmap[0]); + bitmap[0] = be32_to_cpup(p++); if (bmlen > 1) - READ32(bitmap[1]); + bitmap[1] = be32_to_cpup(p); } return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) { __be32 *p; - READ_BUF(4); - READ32(*attrlen); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *attrlen = be32_to_cpup(p); *savep = xdr->p; return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) @@ -2182,61 +2557,82 @@ static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint3 bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; } else bitmask[0] = bitmask[1] = 0; - dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); + dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); return 0; } static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) { __be32 *p; + int ret = 0; *type = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { - READ_BUF(4); - READ32(*type); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *type = be32_to_cpup(p); if (*type < NF4REG || *type > NF4NAMEDATTR) { - dprintk("%s: bad type %d\n", __FUNCTION__, *type); + dprintk("%s: bad type %d\n", __func__, *type); return -EIO; } bitmap[0] &= ~FATTR4_WORD0_TYPE; + ret = NFS_ATTR_FATTR_TYPE; } - dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); - return 0; + dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) { __be32 *p; + int ret = 0; *change = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { - READ_BUF(8); - READ64(*change); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, change); bitmap[0] &= ~FATTR4_WORD0_CHANGE; + ret = NFS_ATTR_FATTR_CHANGE; } - dprintk("%s: change attribute=%Lu\n", __FUNCTION__, + dprintk("%s: change attribute=%Lu\n", __func__, (unsigned long long)*change); - return 0; + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) { __be32 *p; + int ret = 0; *size = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { - READ_BUF(8); - READ64(*size); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, size); bitmap[0] &= ~FATTR4_WORD0_SIZE; + ret = NFS_ATTR_FATTR_SIZE; } - dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); - return 0; + dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) @@ -2247,12 +2643,17 @@ static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, ui if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { - READ_BUF(4); - READ32(*res); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; } - dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); + dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) @@ -2263,32 +2664,44 @@ static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { - READ_BUF(4); - READ32(*res); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; } - dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); + dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) { __be32 *p; + int ret = 0; fsid->major = 0; fsid->minor = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { - READ_BUF(16); - READ64(fsid->major); - READ64(fsid->minor); + p = xdr_inline_decode(xdr, 16); + if (unlikely(!p)) + goto out_overflow; + p = xdr_decode_hyper(p, &fsid->major); + xdr_decode_hyper(p, &fsid->minor); bitmap[0] &= ~FATTR4_WORD0_FSID; + ret = NFS_ATTR_FATTR_FSID; } - dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, + dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, (unsigned long long)fsid->major, (unsigned long long)fsid->minor); - return 0; + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) @@ -2299,12 +2712,17 @@ static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { - READ_BUF(4); - READ32(*res); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; } - dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); + dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) @@ -2315,44 +2733,63 @@ static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { - READ_BUF(4); - READ32(*res); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; } - dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); + dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) { __be32 *p; + int ret = 0; *fileid = 0; if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { - READ_BUF(8); - READ64(*fileid); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, fileid); bitmap[0] &= ~FATTR4_WORD0_FILEID; + ret = NFS_ATTR_FATTR_FILEID; } - dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); - return 0; + dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) { __be32 *p; + int ret = 0; *fileid = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { - READ_BUF(8); - READ64(*fileid); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, fileid); bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; + ret = NFS_ATTR_FATTR_FILEID; } - dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); - return 0; + dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) @@ -2364,12 +2801,17 @@ static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uin if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; } - dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) @@ -2381,12 +2823,17 @@ static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; } - dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) @@ -2398,24 +2845,29 @@ static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uin if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; } - dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) { - int n; + u32 n; __be32 *p; int status = 0; - READ_BUF(4); - READ32(n); - if (n < 0) - goto out_eio; + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + n = be32_to_cpup(p); if (n == 0) goto root_path; dprintk("path "); @@ -2449,6 +2901,9 @@ out_eio: dprintk(" status %d", status); status = -EIO; goto out; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) @@ -2462,26 +2917,28 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st status = 0; if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) goto out; - dprintk("%s: fsroot ", __FUNCTION__); + dprintk("%s: fsroot ", __func__); status = decode_pathname(xdr, &res->fs_path); if (unlikely(status != 0)) goto out; - READ_BUF(4); - READ32(n); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + n = be32_to_cpup(p); if (n <= 0) goto out_eio; res->nlocations = 0; while (res->nlocations < n) { - int m; + u32 m; struct nfs4_fs_location *loc = &res->locations[res->nlocations]; - READ_BUF(4); - READ32(m); - if (m <= 0) - goto out_eio; + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + m = be32_to_cpup(p); loc->nservers = 0; - dprintk("%s: servers ", __FUNCTION__); + dprintk("%s: servers ", __func__); while (loc->nservers < m) { struct nfs4_string *server = &loc->servers[loc->nservers]; status = decode_opaque_inline(xdr, &server->len, &server->data); @@ -2491,8 +2948,12 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) loc->nservers++; else { - int i; - dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); + unsigned int i; + dprintk("%s: using first %u of %u servers " + "returned for location %u\n", + __func__, + NFS4_FS_LOCATION_MAXSERVERS, + m, res->nlocations); for (i = loc->nservers; i < m; i++) { unsigned int len; char *data; @@ -2508,9 +2969,13 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) res->nlocations++; } + if (res->nlocations != 0) + status = NFS_ATTR_FATTR_V4_REFERRAL; out: - dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); + dprintk("%s: fs_locations done, error = %d\n", __func__, status); return status; +out_overflow: + print_overflow_msg(__func__, xdr); out_eio: status = -EIO; goto out; @@ -2525,12 +2990,17 @@ static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uin if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; } - dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) @@ -2542,12 +3012,17 @@ static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_ if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { - READ_BUF(4); - READ32(*maxlink); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *maxlink = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_MAXLINK; } - dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); + dprintk("%s: maxlink=%u\n", __func__, *maxlink); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) @@ -2559,12 +3034,17 @@ static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_ if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { - READ_BUF(4); - READ32(*maxname); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *maxname = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_MAXNAME; } - dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); + dprintk("%s: maxname=%u\n", __func__, *maxname); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) @@ -2577,15 +3057,20 @@ static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_ return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { uint64_t maxread; - READ_BUF(8); - READ64(maxread); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, &maxread); if (maxread > 0x7FFFFFFF) maxread = 0x7FFFFFFF; *res = (uint32_t)maxread; bitmap[0] &= ~FATTR4_WORD0_MAXREAD; } - dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); + dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) @@ -2598,104 +3083,151 @@ static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32 return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { uint64_t maxwrite; - READ_BUF(8); - READ64(maxwrite); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, &maxwrite); if (maxwrite > 0x7FFFFFFF) maxwrite = 0x7FFFFFFF; *res = (uint32_t)maxwrite; bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; } - dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); + dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } -static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) +static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) { + uint32_t tmp; __be32 *p; + int ret = 0; *mode = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { - READ_BUF(4); - READ32(*mode); - *mode &= ~S_IFMT; + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + tmp = be32_to_cpup(p); + *mode = tmp & ~S_IFMT; bitmap[1] &= ~FATTR4_WORD1_MODE; + ret = NFS_ATTR_FATTR_MODE; } - dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); - return 0; + dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) { __be32 *p; + int ret = 0; *nlink = 1; if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { - READ_BUF(4); - READ32(*nlink); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + *nlink = be32_to_cpup(p); bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; + ret = NFS_ATTR_FATTR_NLINK; } - dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); - return 0; + dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } -static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) +static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, + struct nfs_client *clp, uint32_t *uid, int may_sleep) { uint32_t len; __be32 *p; + int ret = 0; *uid = -2; if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { - READ_BUF(4); - READ32(len); - READ_BUF(len); - if (len < XDR_MAX_NETOBJ) { - if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + len = be32_to_cpup(p); + p = xdr_inline_decode(xdr, len); + if (unlikely(!p)) + goto out_overflow; + if (!may_sleep) { + /* do nothing */ + } else if (len < XDR_MAX_NETOBJ) { + if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) + ret = NFS_ATTR_FATTR_OWNER; + else dprintk("%s: nfs_map_name_to_uid failed!\n", - __FUNCTION__); + __func__); } else - printk(KERN_WARNING "%s: name too long (%u)!\n", - __FUNCTION__, len); + dprintk("%s: name too long (%u)!\n", + __func__, len); bitmap[1] &= ~FATTR4_WORD1_OWNER; } - dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); - return 0; + dprintk("%s: uid=%d\n", __func__, (int)*uid); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } -static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) +static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, + struct nfs_client *clp, uint32_t *gid, int may_sleep) { uint32_t len; __be32 *p; + int ret = 0; *gid = -2; if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { - READ_BUF(4); - READ32(len); - READ_BUF(len); - if (len < XDR_MAX_NETOBJ) { - if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + len = be32_to_cpup(p); + p = xdr_inline_decode(xdr, len); + if (unlikely(!p)) + goto out_overflow; + if (!may_sleep) { + /* do nothing */ + } else if (len < XDR_MAX_NETOBJ) { + if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) + ret = NFS_ATTR_FATTR_GROUP; + else dprintk("%s: nfs_map_group_to_gid failed!\n", - __FUNCTION__); + __func__); } else - printk(KERN_WARNING "%s: name too long (%u)!\n", - __FUNCTION__, len); + dprintk("%s: name too long (%u)!\n", + __func__, len); bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; } - dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); - return 0; + dprintk("%s: gid=%d\n", __func__, (int)*gid); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) { uint32_t major = 0, minor = 0; __be32 *p; + int ret = 0; *rdev = MKDEV(0,0); if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) @@ -2703,16 +3235,22 @@ static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rde if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { dev_t tmp; - READ_BUF(8); - READ32(major); - READ32(minor); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + major = be32_to_cpup(p++); + minor = be32_to_cpup(p); tmp = MKDEV(major, minor); if (MAJOR(tmp) == major && MINOR(tmp) == minor) *rdev = tmp; bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; + ret = NFS_ATTR_FATTR_RDEV; } - dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); - return 0; + dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) @@ -2724,12 +3262,17 @@ static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uin if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; } - dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) @@ -2741,12 +3284,17 @@ static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; } - dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) @@ -2758,29 +3306,41 @@ static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uin if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { - READ_BUF(8); - READ64(*res); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, res); bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; } - dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); + dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) { __be32 *p; + int ret = 0; *used = 0; if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { - READ_BUF(8); - READ64(*used); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, used); bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; + ret = NFS_ATTR_FATTR_SPACE_USED; } - dprintk("%s: space used=%Lu\n", __FUNCTION__, + dprintk("%s: space used=%Lu\n", __func__, (unsigned long long)*used); - return 0; + return ret; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) @@ -2789,12 +3349,17 @@ static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) uint64_t sec; uint32_t nsec; - READ_BUF(12); - READ64(sec); - READ32(nsec); + p = xdr_inline_decode(xdr, 12); + if (unlikely(!p)) + goto out_overflow; + p = xdr_decode_hyper(p, &sec); + nsec = be32_to_cpup(p); time->tv_sec = (time_t)sec; time->tv_nsec = (long)nsec; return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) @@ -2807,9 +3372,11 @@ static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, str return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { status = decode_attr_time(xdr, time); + if (status == 0) + status = NFS_ATTR_FATTR_ATIME; bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; } - dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); + dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); return status; } @@ -2823,9 +3390,11 @@ static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, s return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { status = decode_attr_time(xdr, time); + if (status == 0) + status = NFS_ATTR_FATTR_CTIME; bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; } - dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); + dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); return status; } @@ -2839,9 +3408,11 @@ static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, str return -EIO; if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { status = decode_attr_time(xdr, time); + if (status == 0) + status = NFS_ATTR_FATTR_MTIME; bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; } - dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); + dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); return status; } @@ -2851,8 +3422,9 @@ static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrl unsigned int nwords = xdr->p - savep; if (unlikely(attrwords != nwords)) { - printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", - __FUNCTION__, + dprintk("%s: server returned incorrect attribute length: " + "%u %c %u\n", + __func__, attrwords << 2, (attrwords < nwords) ? '<' : '>', nwords << 2); @@ -2865,11 +3437,16 @@ static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *c { __be32 *p; - READ_BUF(20); - READ32(cinfo->atomic); - READ64(cinfo->before); - READ64(cinfo->after); + p = xdr_inline_decode(xdr, 20); + if (unlikely(!p)) + goto out_overflow; + cinfo->atomic = be32_to_cpup(p++); + p = xdr_decode_hyper(p, &cinfo->before); + xdr_decode_hyper(p, &cinfo->after); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) @@ -2881,38 +3458,62 @@ static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) status = decode_op_hdr(xdr, OP_ACCESS); if (status) return status; - READ_BUF(8); - READ32(supp); - READ32(acc); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + supp = be32_to_cpup(p++); + acc = be32_to_cpup(p); access->supported = supp; access->access = acc; return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } -static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) +static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) { __be32 *p; + + p = xdr_inline_decode(xdr, len); + if (likely(p)) { + memcpy(buf, p, len); + return 0; + } + print_overflow_msg(__func__, xdr); + return -EIO; +} + +static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) +{ + return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); +} + +static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) +{ int status; status = decode_op_hdr(xdr, OP_CLOSE); - if (status) - return status; - READ_BUF(NFS4_STATEID_SIZE); - COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); - return 0; + if (status != -EIO) + nfs_increment_open_seqid(status, res->seqid); + if (!status) + status = decode_stateid(xdr, &res->stateid); + return status; +} + +static int decode_verifier(struct xdr_stream *xdr, void *verifier) +{ + return decode_opaque_fixed(xdr, verifier, 8); } static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) { - __be32 *p; int status; status = decode_op_hdr(xdr, OP_COMMIT); - if (status) - return status; - READ_BUF(8); - COPYMEM(res->verf->verifier, 8); - return 0; + if (!status) + status = decode_verifier(xdr, res->verf->verifier); + return status; } static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) @@ -2926,17 +3527,22 @@ static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) return status; if ((status = decode_change_info(xdr, cinfo))) return status; - READ_BUF(4); - READ32(bmlen); - READ_BUF(bmlen << 2); - return 0; -} + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + bmlen = be32_to_cpup(p); + p = xdr_inline_decode(xdr, bmlen << 2); + if (likely(p)) + return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) { __be32 *savep; - uint32_t attrlen, - bitmap[2] = {0}; + uint32_t attrlen, bitmap[2] = {0}; int status; if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) @@ -2955,17 +3561,16 @@ static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_re goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: - dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); + dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } - + static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) { __be32 *savep; - uint32_t attrlen, - bitmap[2] = {0}; + uint32_t attrlen, bitmap[2] = {0}; int status; - + if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto xdr_error; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) @@ -2988,17 +3593,16 @@ static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) status = verify_attr_len(xdr, savep, attrlen); xdr_error: - dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); + dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) { __be32 *savep; - uint32_t attrlen, - bitmap[2] = {0}; + uint32_t attrlen, bitmap[2] = {0}; int status; - + if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) goto xdr_error; if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) @@ -3013,75 +3617,131 @@ static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf status = verify_attr_len(xdr, savep, attrlen); xdr_error: - dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); + dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } -static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) +static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, + const struct nfs_server *server, int may_sleep) { __be32 *savep; uint32_t attrlen, bitmap[2] = {0}, type; - int status, fmode = 0; + int status; + umode_t fmode = 0; uint64_t fileid; - if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) - goto xdr_error; - if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) + status = decode_op_hdr(xdr, OP_GETATTR); + if (status < 0) goto xdr_error; - fattr->bitmap[0] = bitmap[0]; - fattr->bitmap[1] = bitmap[1]; + status = decode_attr_bitmap(xdr, bitmap); + if (status < 0) + goto xdr_error; - if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) + status = decode_attr_length(xdr, &attrlen, &savep); + if (status < 0) goto xdr_error; - if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) + status = decode_attr_type(xdr, bitmap, &type); + if (status < 0) goto xdr_error; - fattr->type = nfs_type2fmt[type].nfs2type; - fmode = nfs_type2fmt[type].mode; + fattr->mode = 0; + if (status != 0) { + fattr->mode |= nfs_type2fmt[type]; + fattr->valid |= status; + } - if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) + status = decode_attr_change(xdr, bitmap, &fattr->change_attr); + if (status < 0) goto xdr_error; - if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) + fattr->valid |= status; + + status = decode_attr_size(xdr, bitmap, &fattr->size); + if (status < 0) goto xdr_error; - if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) + fattr->valid |= status; + + status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); + if (status < 0) goto xdr_error; - if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) + fattr->valid |= status; + + status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); + if (status < 0) goto xdr_error; - if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, + fattr->valid |= status; + + status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, struct nfs4_fs_locations, - fattr))) != 0) + fattr)); + if (status < 0) goto xdr_error; - if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) + fattr->valid |= status; + + status = decode_attr_mode(xdr, bitmap, &fmode); + if (status < 0) goto xdr_error; - fattr->mode |= fmode; - if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) + if (status != 0) { + fattr->mode |= fmode; + fattr->valid |= status; + } + + status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); + if (status < 0) goto xdr_error; - if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) + fattr->valid |= status; + + status = decode_attr_owner(xdr, bitmap, server->nfs_client, + &fattr->uid, may_sleep); + if (status < 0) goto xdr_error; - if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) + fattr->valid |= status; + + status = decode_attr_group(xdr, bitmap, server->nfs_client, + &fattr->gid, may_sleep); + if (status < 0) goto xdr_error; - if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) + fattr->valid |= status; + + status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); + if (status < 0) goto xdr_error; - if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) + fattr->valid |= status; + + status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); + if (status < 0) goto xdr_error; - if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) + fattr->valid |= status; + + status = decode_attr_time_access(xdr, bitmap, &fattr->atime); + if (status < 0) goto xdr_error; - if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) + fattr->valid |= status; + + status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); + if (status < 0) goto xdr_error; - if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) + fattr->valid |= status; + + status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); + if (status < 0) goto xdr_error; - if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) + fattr->valid |= status; + + status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); + if (status < 0) goto xdr_error; - if (fattr->fileid == 0 && fileid != 0) + if (status != 0 && !(fattr->valid & status)) { fattr->fileid = fileid; - if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) - fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; + fattr->valid |= status; + } + + status = verify_attr_len(xdr, savep, attrlen); xdr_error: - dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); + dprintk("%s: xdr returned %d\n", __func__, -status); return status; } @@ -3114,7 +3774,7 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) status = verify_attr_len(xdr, savep, attrlen); xdr_error: - dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); + dprintk("%s: xdr returned %d!\n", __func__, -status); return status; } @@ -3124,26 +3784,34 @@ static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) uint32_t len; int status; + /* Zero handle first to allow comparisons */ + memset(fh, 0, sizeof(*fh)); + status = decode_op_hdr(xdr, OP_GETFH); if (status) return status; - /* Zero handle first to allow comparisons */ - memset(fh, 0, sizeof(*fh)); - READ_BUF(4); - READ32(len); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + len = be32_to_cpup(p); if (len > NFS4_FHSIZE) return -EIO; fh->size = len; - READ_BUF(len); - COPYMEM(fh->data, len); + p = xdr_inline_decode(xdr, len); + if (unlikely(!p)) + goto out_overflow; + memcpy(fh->data, p, len); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) { int status; - + status = decode_op_hdr(xdr, OP_LINK); if (status) return status; @@ -3159,10 +3827,12 @@ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) __be32 *p; uint32_t namelen, type; - READ_BUF(32); - READ64(offset); - READ64(length); - READ32(type); + p = xdr_inline_decode(xdr, 32); + if (unlikely(!p)) + goto out_overflow; + p = xdr_decode_hyper(p, &offset); + p = xdr_decode_hyper(p, &length); + type = be32_to_cpup(p++); if (fl != NULL) { fl->fl_start = (loff_t)offset; fl->fl_end = fl->fl_start + (loff_t)length - 1; @@ -3173,23 +3843,33 @@ static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) fl->fl_type = F_RDLCK; fl->fl_pid = 0; } - READ64(clientid); - READ32(namelen); - READ_BUF(namelen); - return -NFS4ERR_DENIED; + p = xdr_decode_hyper(p, &clientid); + namelen = be32_to_cpup(p); + p = xdr_inline_decode(xdr, namelen); + if (likely(p)) + return -NFS4ERR_DENIED; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) { - __be32 *p; int status; status = decode_op_hdr(xdr, OP_LOCK); + if (status == -EIO) + goto out; if (status == 0) { - READ_BUF(NFS4_STATEID_SIZE); - COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); + status = decode_stateid(xdr, &res->stateid); + if (unlikely(status)) + goto out; } else if (status == -NFS4ERR_DENIED) - return decode_lock_denied(xdr, NULL); + status = decode_lock_denied(xdr, NULL); + if (res->open_seqid != NULL) + nfs_increment_open_seqid(status, res->open_seqid); + nfs_increment_lock_seqid(status, res->lock_seqid); +out: return status; } @@ -3204,14 +3884,13 @@ static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) { - __be32 *p; int status; status = decode_op_hdr(xdr, OP_LOCKU); - if (status == 0) { - READ_BUF(NFS4_STATEID_SIZE); - COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); - } + if (status != -EIO) + nfs_increment_lock_seqid(status, res->seqid); + if (status == 0) + status = decode_stateid(xdr, &res->stateid); return status; } @@ -3223,106 +3902,129 @@ static int decode_lookup(struct xdr_stream *xdr) /* This is too sick! */ static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) { - __be32 *p; + __be32 *p; uint32_t limit_type, nblocks, blocksize; - READ_BUF(12); - READ32(limit_type); + p = xdr_inline_decode(xdr, 12); + if (unlikely(!p)) + goto out_overflow; + limit_type = be32_to_cpup(p++); switch (limit_type) { - case 1: - READ64(*maxsize); - break; - case 2: - READ32(nblocks); - READ32(blocksize); - *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; + case 1: + xdr_decode_hyper(p, maxsize); + break; + case 2: + nblocks = be32_to_cpup(p++); + blocksize = be32_to_cpup(p); + *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; } return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) { - __be32 *p; - uint32_t delegation_type; + __be32 *p; + uint32_t delegation_type; + int status; - READ_BUF(4); - READ32(delegation_type); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + delegation_type = be32_to_cpup(p); if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { res->delegation_type = 0; return 0; } - READ_BUF(NFS4_STATEID_SIZE+4); - COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); - READ32(res->do_recall); + status = decode_stateid(xdr, &res->delegation); + if (unlikely(status)) + return status; + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + res->do_recall = be32_to_cpup(p); + switch (delegation_type) { - case NFS4_OPEN_DELEGATE_READ: - res->delegation_type = FMODE_READ; - break; - case NFS4_OPEN_DELEGATE_WRITE: - res->delegation_type = FMODE_WRITE|FMODE_READ; - if (decode_space_limit(xdr, &res->maxsize) < 0) + case NFS4_OPEN_DELEGATE_READ: + res->delegation_type = FMODE_READ; + break; + case NFS4_OPEN_DELEGATE_WRITE: + res->delegation_type = FMODE_WRITE|FMODE_READ; + if (decode_space_limit(xdr, &res->maxsize) < 0) return -EIO; } return decode_ace(xdr, NULL, res->server->nfs_client); +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) { - __be32 *p; + __be32 *p; uint32_t savewords, bmlen, i; - int status; + int status; - status = decode_op_hdr(xdr, OP_OPEN); - if (status) - return status; - READ_BUF(NFS4_STATEID_SIZE); - COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); + status = decode_op_hdr(xdr, OP_OPEN); + if (status != -EIO) + nfs_increment_open_seqid(status, res->seqid); + if (!status) + status = decode_stateid(xdr, &res->stateid); + if (unlikely(status)) + return status; - decode_change_info(xdr, &res->cinfo); + decode_change_info(xdr, &res->cinfo); - READ_BUF(8); - READ32(res->rflags); - READ32(bmlen); - if (bmlen > 10) - goto xdr_error; + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + res->rflags = be32_to_cpup(p++); + bmlen = be32_to_cpup(p); + if (bmlen > 10) + goto xdr_error; - READ_BUF(bmlen << 2); + p = xdr_inline_decode(xdr, bmlen << 2); + if (unlikely(!p)) + goto out_overflow; savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); for (i = 0; i < savewords; ++i) - READ32(res->attrset[i]); + res->attrset[i] = be32_to_cpup(p++); for (; i < NFS4_BITMAP_SIZE; i++) res->attrset[i] = 0; return decode_delegation(xdr, res); xdr_error: - dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); + dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); + return -EIO; +out_overflow: + print_overflow_msg(__func__, xdr); return -EIO; } static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) { - __be32 *p; int status; - status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); - if (status) - return status; - READ_BUF(NFS4_STATEID_SIZE); - COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); - return 0; + status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); + if (status != -EIO) + nfs_increment_open_seqid(status, res->seqid); + if (!status) + status = decode_stateid(xdr, &res->stateid); + return status; } static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) { - __be32 *p; int status; status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); - if (status) - return status; - READ_BUF(NFS4_STATEID_SIZE); - COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); - return 0; + if (status != -EIO) + nfs_increment_open_seqid(status, res->seqid); + if (!status) + status = decode_stateid(xdr, &res->stateid); + return status; } static int decode_putfh(struct xdr_stream *xdr) @@ -3345,13 +4047,15 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_ status = decode_op_hdr(xdr, OP_READ); if (status) return status; - READ_BUF(8); - READ32(eof); - READ32(count); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + eof = be32_to_cpup(p++); + count = be32_to_cpup(p); hdrlen = (u8 *) p - (u8 *) iov->iov_base; recvd = req->rq_rcv_buf.len - hdrlen; if (count > recvd) { - printk(KERN_WARNING "NFS: server cheating in read reply: " + dprintk("NFS: server cheating in read reply: " "count %u > recvd %u\n", count, recvd); count = recvd; eof = 0; @@ -3360,6 +4064,9 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_ res->eof = eof; res->count = count; return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) @@ -3367,23 +4074,24 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n struct xdr_buf *rcvbuf = &req->rq_rcv_buf; struct page *page = *rcvbuf->pages; struct kvec *iov = rcvbuf->head; - unsigned int nr, pglen = rcvbuf->page_len; + size_t hdrlen; + u32 recvd, pglen = rcvbuf->page_len; __be32 *end, *entry, *p, *kaddr; - uint32_t len, attrlen, xlen; - int hdrlen, recvd, status; + unsigned int nr = 0; + int status; status = decode_op_hdr(xdr, OP_READDIR); - if (status) + if (!status) + status = decode_verifier(xdr, readdir->verifier.data); + if (unlikely(status)) return status; - READ_BUF(8); - COPYMEM(readdir->verifier.data, 8); - dprintk("%s: verifier = 0x%x%x\n", - __FUNCTION__, + dprintk("%s: verifier = %08x:%08x\n", + __func__, ((u32 *)readdir->verifier.data)[0], ((u32 *)readdir->verifier.data)[1]); - hdrlen = (char *) p - (char *) iov->iov_base; + hdrlen = (char *) xdr->p - (char *) iov->iov_base; recvd = rcvbuf->len - hdrlen; if (pglen > recvd) pglen = recvd; @@ -3393,14 +4101,21 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n kaddr = p = kmap_atomic(page, KM_USER0); end = p + ((pglen + readdir->pgbase) >> 2); entry = p; - for (nr = 0; *p++; nr++) { + + /* Make sure the packet actually has a value_follows and EOF entry */ + if ((entry + 1) > end) + goto short_pkt; + + for (; *p++; nr++) { + u32 len, attrlen, xlen; if (end - p < 3) goto short_pkt; dprintk("cookie = %Lu, ", *((unsigned long long *)p)); p += 2; /* cookie */ len = ntohl(*p++); /* filename length */ if (len > NFS4_MAXNAMLEN) { - printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); + dprintk("NFS: giant filename in readdir (len 0x%x)\n", + len); goto err_unmap; } xlen = XDR_QUADLEN(len); @@ -3418,20 +4133,32 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n p += attrlen; /* attributes */ entry = p; } - if (!nr && (entry[0] != 0 || entry[1] == 0)) - goto short_pkt; -out: + /* + * Apparently some server sends responses that are a valid size, but + * contain no entries, and have value_follows==0 and EOF==0. For + * those, just set the EOF marker. + */ + if (!nr && entry[1] == 0) { + dprintk("NFS: readdir reply truncated!\n"); + entry[1] = 1; + } +out: kunmap_atomic(kaddr, KM_USER0); return 0; short_pkt: - dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); + /* + * When we get a short packet there are 2 possibilities. We can + * return an error, or fix up the response to look like a valid + * response and return what we have so far. If there are no + * entries and the packet was short, then return -EIO. If there + * are valid entries in the response, return them and pretend that + * the call was successful, but incomplete. The caller can retry the + * readdir starting at the last cookie. + */ + dprintk("%s: short packet at entry %d\n", __func__, nr); entry[0] = entry[1] = 0; - /* truncate listing ? */ - if (!nr) { - printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); - entry[1] = 1; - } - goto out; + if (nr) + goto out; err_unmap: kunmap_atomic(kaddr, KM_USER0); return -errno_NFSERR_IO; @@ -3441,7 +4168,8 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) { struct xdr_buf *rcvbuf = &req->rq_rcv_buf; struct kvec *iov = rcvbuf->head; - int hdrlen, len, recvd; + size_t hdrlen; + u32 len, recvd; __be32 *p; char *kaddr; int status; @@ -3451,16 +4179,18 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) return status; /* Convert length of symlink */ - READ_BUF(4); - READ32(len); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + len = be32_to_cpup(p); if (len >= rcvbuf->page_len || len <= 0) { - dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); + dprintk("nfs: server returned giant symlink!\n"); return -ENAMETOOLONG; } hdrlen = (char *) xdr->p - (char *) iov->iov_base; recvd = req->rq_rcv_buf.len - hdrlen; if (recvd < len) { - printk(KERN_WARNING "NFS: server cheating in readlink reply: " + dprintk("NFS: server cheating in readlink reply: " "count %u > recvd %u\n", len, recvd); return -EIO; } @@ -3476,6 +4206,9 @@ static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) kaddr[len+rcvbuf->page_base] = '\0'; kunmap_atomic(kaddr, KM_USER0); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) @@ -3536,14 +4269,15 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) return -EIO; if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { - int hdrlen, recvd; + size_t hdrlen; + u32 recvd; /* We ignore &savep and don't do consistency checks on * the attr length. Let userspace figure it out.... */ hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; recvd = req->rq_rcv_buf.len - hdrlen; if (attrlen > recvd) { - printk(KERN_WARNING "NFS: server cheating in getattr" + dprintk("NFS: server cheating in getattr" " acl reply: attrlen %u > recvd %u\n", attrlen, recvd); return -EINVAL; @@ -3563,20 +4297,25 @@ decode_savefh(struct xdr_stream *xdr) return decode_op_hdr(xdr, OP_SAVEFH); } -static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) +static int decode_setattr(struct xdr_stream *xdr) { __be32 *p; uint32_t bmlen; int status; - status = decode_op_hdr(xdr, OP_SETATTR); if (status) return status; - READ_BUF(4); - READ32(bmlen); - READ_BUF(bmlen << 2); - return 0; + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + bmlen = be32_to_cpup(p); + p = xdr_inline_decode(xdr, bmlen << 2); + if (likely(p)) + return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) @@ -3585,36 +4324,50 @@ static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) uint32_t opnum; int32_t nfserr; - READ_BUF(8); - READ32(opnum); + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + opnum = be32_to_cpup(p++); if (opnum != OP_SETCLIENTID) { - printk(KERN_NOTICE - "nfs4_decode_setclientid: Server returned operation" - " %d\n", opnum); + dprintk("nfs: decode_setclientid: Server returned operation" + " %d\n", opnum); return -EIO; } - READ32(nfserr); + nfserr = be32_to_cpup(p); if (nfserr == NFS_OK) { - READ_BUF(8 + NFS4_VERIFIER_SIZE); - READ64(clp->cl_clientid); - COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); + p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); + if (unlikely(!p)) + goto out_overflow; + p = xdr_decode_hyper(p, &clp->cl_clientid); + memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE); } else if (nfserr == NFSERR_CLID_INUSE) { uint32_t len; /* skip netid string */ - READ_BUF(4); - READ32(len); - READ_BUF(len); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + len = be32_to_cpup(p); + p = xdr_inline_decode(xdr, len); + if (unlikely(!p)) + goto out_overflow; /* skip uaddr string */ - READ_BUF(4); - READ32(len); - READ_BUF(len); + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + len = be32_to_cpup(p); + p = xdr_inline_decode(xdr, len); + if (unlikely(!p)) + goto out_overflow; return -NFSERR_CLID_INUSE; } else - return -nfs4_stat_to_errno(nfserr); + return nfs4_stat_to_errno(nfserr); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_setclientid_confirm(struct xdr_stream *xdr) @@ -3631,11 +4384,16 @@ static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) if (status) return status; - READ_BUF(16); - READ32(res->count); - READ32(res->verf->committed); - COPYMEM(res->verf->verifier, 8); + p = xdr_inline_decode(xdr, 16); + if (unlikely(!p)) + goto out_overflow; + res->count = be32_to_cpup(p++); + res->verf->committed = be32_to_cpup(p++); + memcpy(res->verf->verifier, p, 8); return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; } static int decode_delegreturn(struct xdr_stream *xdr) @@ -3643,35 +4401,236 @@ static int decode_delegreturn(struct xdr_stream *xdr) return decode_op_hdr(xdr, OP_DELEGRETURN); } +#if defined(CONFIG_NFS_V4_1) +static int decode_exchange_id(struct xdr_stream *xdr, + struct nfs41_exchange_id_res *res) +{ + __be32 *p; + uint32_t dummy; + char *dummy_str; + int status; + struct nfs_client *clp = res->client; + + status = decode_op_hdr(xdr, OP_EXCHANGE_ID); + if (status) + return status; + + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + xdr_decode_hyper(p, &clp->cl_ex_clid); + p = xdr_inline_decode(xdr, 12); + if (unlikely(!p)) + goto out_overflow; + clp->cl_seqid = be32_to_cpup(p++); + clp->cl_exchange_flags = be32_to_cpup(p++); + + /* We ask for SP4_NONE */ + dummy = be32_to_cpup(p); + if (dummy != SP4_NONE) + return -EIO; + + /* Throw away minor_id */ + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + + /* Throw away Major id */ + status = decode_opaque_inline(xdr, &dummy, &dummy_str); + if (unlikely(status)) + return status; + + /* Throw away server_scope */ + status = decode_opaque_inline(xdr, &dummy, &dummy_str); + if (unlikely(status)) + return status; + + /* Throw away Implementation id array */ + status = decode_opaque_inline(xdr, &dummy, &dummy_str); + if (unlikely(status)) + return status; + + return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} + +static int decode_chan_attrs(struct xdr_stream *xdr, + struct nfs4_channel_attrs *attrs) +{ + __be32 *p; + u32 nr_attrs; + + p = xdr_inline_decode(xdr, 28); + if (unlikely(!p)) + goto out_overflow; + attrs->headerpadsz = be32_to_cpup(p++); + attrs->max_rqst_sz = be32_to_cpup(p++); + attrs->max_resp_sz = be32_to_cpup(p++); + attrs->max_resp_sz_cached = be32_to_cpup(p++); + attrs->max_ops = be32_to_cpup(p++); + attrs->max_reqs = be32_to_cpup(p++); + nr_attrs = be32_to_cpup(p); + if (unlikely(nr_attrs > 1)) { + printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", + __func__, nr_attrs); + return -EINVAL; + } + if (nr_attrs == 1) { + p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ + if (unlikely(!p)) + goto out_overflow; + } + return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} + +static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) +{ + return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); +} + +static int decode_create_session(struct xdr_stream *xdr, + struct nfs41_create_session_res *res) +{ + __be32 *p; + int status; + struct nfs_client *clp = res->client; + struct nfs4_session *session = clp->cl_session; + + status = decode_op_hdr(xdr, OP_CREATE_SESSION); + if (!status) + status = decode_sessionid(xdr, &session->sess_id); + if (unlikely(status)) + return status; + + /* seqid, flags */ + p = xdr_inline_decode(xdr, 8); + if (unlikely(!p)) + goto out_overflow; + clp->cl_seqid = be32_to_cpup(p++); + session->flags = be32_to_cpup(p); + + /* Channel attributes */ + status = decode_chan_attrs(xdr, &session->fc_attrs); + if (!status) + status = decode_chan_attrs(xdr, &session->bc_attrs); + return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} + +static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) +{ + return decode_op_hdr(xdr, OP_DESTROY_SESSION); +} +#endif /* CONFIG_NFS_V4_1 */ + +static int decode_sequence(struct xdr_stream *xdr, + struct nfs4_sequence_res *res, + struct rpc_rqst *rqstp) +{ +#if defined(CONFIG_NFS_V4_1) + struct nfs4_slot *slot; + struct nfs4_sessionid id; + u32 dummy; + int status; + __be32 *p; + + if (!res->sr_session) + return 0; + + status = decode_op_hdr(xdr, OP_SEQUENCE); + if (!status) + status = decode_sessionid(xdr, &id); + if (unlikely(status)) + goto out_err; + + /* + * If the server returns different values for sessionID, slotID or + * sequence number, the server is looney tunes. + */ + status = -ESERVERFAULT; + + if (memcmp(id.data, res->sr_session->sess_id.data, + NFS4_MAX_SESSIONID_LEN)) { + dprintk("%s Invalid session id\n", __func__); + goto out_err; + } + + p = xdr_inline_decode(xdr, 20); + if (unlikely(!p)) + goto out_overflow; + + /* seqid */ + slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; + dummy = be32_to_cpup(p++); + if (dummy != slot->seq_nr) { + dprintk("%s Invalid sequence number\n", __func__); + goto out_err; + } + /* slot id */ + dummy = be32_to_cpup(p++); + if (dummy != res->sr_slotid) { + dprintk("%s Invalid slot id\n", __func__); + goto out_err; + } + /* highest slot id - currently not processed */ + dummy = be32_to_cpup(p++); + /* target highest slot id - currently not processed */ + dummy = be32_to_cpup(p++); + /* result flags - currently not processed */ + dummy = be32_to_cpup(p); + status = 0; +out_err: + res->sr_status = status; + return status; +out_overflow: + print_overflow_msg(__func__, xdr); + status = -EIO; + goto out_err; +#else /* CONFIG_NFS_V4_1 */ + return 0; +#endif /* CONFIG_NFS_V4_1 */ +} + +/* + * END OF "GENERIC" DECODE ROUTINES. + */ + /* * Decode OPEN_DOWNGRADE response */ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) { - struct xdr_stream xdr; - struct compound_hdr hdr; - int status; - - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - status = decode_compound_hdr(&xdr, &hdr); - if (status) - goto out; - status = decode_putfh(&xdr); - if (status) - goto out; - status = decode_open_downgrade(&xdr, res); + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(&xdr); + if (status) + goto out; + status = decode_open_downgrade(&xdr, res); if (status != 0) goto out; - decode_getfattr(&xdr, res->fattr, res->server); + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: - return status; + return status; } /* - * END OF "GENERIC" DECODE ROUTINES. - */ - -/* * Decode ACCESS response */ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) @@ -3679,12 +4638,22 @@ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_ac struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; - if ((status = decode_putfh(&xdr)) == 0) - status = decode_access(&xdr, res); + status = decode_putfh(&xdr); + if (status != 0) + goto out; + status = decode_access(&xdr, res); + if (status != 0) + goto out; + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3697,9 +4666,13 @@ static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lo struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; @@ -3707,7 +4680,8 @@ static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lo goto out; if ((status = decode_getfh(&xdr, res->fh)) != 0) goto out; - status = decode_getfattr(&xdr, res->fattr, res->server); + status = decode_getfattr(&xdr, res->fattr, res->server + ,!RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3720,14 +4694,19 @@ static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nf struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; if ((status = decode_putrootfh(&xdr)) != 0) goto out; if ((status = decode_getfh(&xdr, res->fh)) == 0) - status = decode_getfattr(&xdr, res->fattr, res->server); + status = decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3735,20 +4714,25 @@ out: /* * Decode REMOVE response */ -static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_remove_res *res) +static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) { struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; if ((status = decode_remove(&xdr, &res->cinfo)) != 0) goto out; - decode_getfattr(&xdr, res->dir_attr, res->server); + decode_getfattr(&xdr, &res->dir_attr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3761,9 +4745,13 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_re struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; @@ -3774,11 +4762,13 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_re if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) goto out; /* Current FH is target directory */ - if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) + if (decode_getfattr(&xdr, res->new_fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)) != 0) goto out; if ((status = decode_restorefh(&xdr)) != 0) goto out; - decode_getfattr(&xdr, res->old_fattr, res->server); + decode_getfattr(&xdr, res->old_fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3791,9 +4781,13 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; @@ -3807,11 +4801,13 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link * Note order: OP_LINK leaves the directory as the current * filehandle. */ - if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) + if (decode_getfattr(&xdr, res->dir_attr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)) != 0) goto out; if ((status = decode_restorefh(&xdr)) != 0) goto out; - decode_getfattr(&xdr, res->fattr, res->server); + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3824,9 +4820,13 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_cr struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; @@ -3836,11 +4836,13 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_cr goto out; if ((status = decode_getfh(&xdr, res->fh)) != 0) goto out; - if (decode_getfattr(&xdr, res->fattr, res->server) != 0) + if (decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)) != 0) goto out; if ((status = decode_restorefh(&xdr)) != 0) goto out; - decode_getfattr(&xdr, res->dir_fattr, res->server); + decode_getfattr(&xdr, res->dir_fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -3861,18 +4863,21 @@ static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_g struct xdr_stream xdr; struct compound_hdr hdr; int status; - + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; - status = decode_getfattr(&xdr, res->fattr, res->server); + status = decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; - } /* @@ -3881,26 +4886,27 @@ out: static int nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) { - struct xdr_stream xdr; - struct compound_hdr hdr = { - .nops = 2, - }; - int status; - - xdr_init_encode(&xdr, &req->rq_snd_buf, p); - encode_compound_hdr(&xdr, &hdr); - status = encode_putfh(&xdr, args->fh); - if (status) - goto out; - status = encode_setacl(&xdr, args); -out: - return status; + struct xdr_stream xdr; + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->seq_args), + }; + int status; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_compound_hdr(&xdr, req, &hdr); + encode_sequence(&xdr, &args->seq_args, &hdr); + encode_putfh(&xdr, args->fh, &hdr); + status = encode_setacl(&xdr, args, &hdr); + encode_nops(&hdr); + return status; } + /* * Decode SETACL response */ static int -nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) +nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, + struct nfs_setaclres *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -3910,10 +4916,13 @@ nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; - status = decode_setattr(&xdr, res); + status = decode_setattr(&xdr); out: return status; } @@ -3922,7 +4931,8 @@ out: * Decode GETACL response */ static int -nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) +nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, + struct nfs_getaclres *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -3932,10 +4942,13 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; - status = decode_getacl(&xdr, rqstp, acl_len); + status = decode_getacl(&xdr, rqstp, &res->acl_len); out: return status; @@ -3946,18 +4959,21 @@ out: */ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) { - struct xdr_stream xdr; - struct compound_hdr hdr; - int status; - - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - status = decode_compound_hdr(&xdr, &hdr); - if (status) - goto out; - status = decode_putfh(&xdr); - if (status) - goto out; - status = decode_close(&xdr, res); + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(&xdr); + if (status) + goto out; + status = decode_close(&xdr, res); if (status != 0) goto out; /* @@ -3966,9 +4982,10 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_clos * an ESTALE error. Shouldn't be a problem, * though, since fattr->valid will remain unset. */ - decode_getfattr(&xdr, res->fattr, res->server); + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: - return status; + return status; } /* @@ -3976,33 +4993,37 @@ out: */ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) { - struct xdr_stream xdr; - struct compound_hdr hdr; - int status; - - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - status = decode_compound_hdr(&xdr, &hdr); - if (status) - goto out; - status = decode_putfh(&xdr); - if (status) - goto out; - status = decode_savefh(&xdr); + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; - status = decode_open(&xdr, res); - if (status) - goto out; - status = decode_getfh(&xdr, &res->fh); - if (status) + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; - if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) + status = decode_putfh(&xdr); + if (status) goto out; - if ((status = decode_restorefh(&xdr)) != 0) + status = decode_savefh(&xdr); + if (status) + goto out; + status = decode_open(&xdr, res); + if (status) goto out; - decode_getfattr(&xdr, res->dir_attr, res->server); + if (decode_getfh(&xdr, &res->fh) != 0) + goto out; + if (decode_getfattr(&xdr, res->f_attr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)) != 0) + goto out; + if (decode_restorefh(&xdr) != 0) + goto out; + decode_getfattr(&xdr, res->dir_attr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: - return status; + return status; } /* @@ -4010,20 +5031,20 @@ out: */ static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) { - struct xdr_stream xdr; - struct compound_hdr hdr; - int status; - - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - status = decode_compound_hdr(&xdr, &hdr); - if (status) - goto out; - status = decode_putfh(&xdr); - if (status) - goto out; - status = decode_open_confirm(&xdr, res); + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_putfh(&xdr); + if (status) + goto out; + status = decode_open_confirm(&xdr, res); out: - return status; + return status; } /* @@ -4031,23 +5052,27 @@ out: */ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) { - struct xdr_stream xdr; - struct compound_hdr hdr; - int status; - - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - status = decode_compound_hdr(&xdr, &hdr); - if (status) - goto out; - status = decode_putfh(&xdr); - if (status) - goto out; - status = decode_open(&xdr, res); - if (status) - goto out; - decode_getfattr(&xdr, res->f_attr, res->server); + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(&xdr); + if (status) + goto out; + status = decode_open(&xdr, res); + if (status) + goto out; + decode_getfattr(&xdr, res->f_attr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: - return status; + return status; } /* @@ -4055,25 +5080,27 @@ out: */ static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) { - struct xdr_stream xdr; - struct compound_hdr hdr; - int status; - - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - status = decode_compound_hdr(&xdr, &hdr); - if (status) - goto out; - status = decode_putfh(&xdr); - if (status) - goto out; - status = decode_setattr(&xdr, res); - if (status) - goto out; - status = decode_getfattr(&xdr, res->fattr, res->server); - if (status == NFS4ERR_DELAY) - status = 0; + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(&xdr); + if (status) + goto out; + status = decode_setattr(&xdr); + if (status) + goto out; + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: - return status; + return status; } /* @@ -4089,6 +5116,9 @@ static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_ status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; @@ -4110,6 +5140,9 @@ static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; @@ -4131,6 +5164,9 @@ static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; @@ -4142,7 +5178,8 @@ out: /* * Decode READLINK response */ -static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) +static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, + struct nfs4_readlink_res *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -4152,6 +5189,9 @@ static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; @@ -4173,6 +5213,9 @@ static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_r status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; @@ -4194,6 +5237,9 @@ static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readr status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; @@ -4217,13 +5263,17 @@ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writ status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; status = decode_write(&xdr, res); if (status) goto out; - decode_getfattr(&xdr, res->fattr, res->server); + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); if (!status) status = res->count; out: @@ -4243,13 +5293,17 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_wri status = decode_compound_hdr(&xdr, &hdr); if (status) goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) + goto out; status = decode_putfh(&xdr); if (status) goto out; status = decode_commit(&xdr, res); if (status) goto out; - decode_getfattr(&xdr, res->fattr, res->server); + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -4257,7 +5311,8 @@ out: /* * FSINFO request */ -static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) +static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, + struct nfs4_fsinfo_res *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -4266,18 +5321,19 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinf xdr_init_decode(&xdr, &req->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); if (!status) - status = decode_putfh(&xdr); + status = decode_sequence(&xdr, &res->seq_res, req); if (!status) - status = decode_fsinfo(&xdr, fsinfo); + status = decode_putfh(&xdr); if (!status) - status = -nfs4_stat_to_errno(hdr.status); + status = decode_fsinfo(&xdr, res->fsinfo); return status; } /* * PATHCONF request */ -static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) +static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, + struct nfs4_pathconf_res *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -4286,16 +5342,19 @@ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pat xdr_init_decode(&xdr, &req->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); if (!status) + status = decode_sequence(&xdr, &res->seq_res, req); + if (!status) status = decode_putfh(&xdr); if (!status) - status = decode_pathconf(&xdr, pathconf); + status = decode_pathconf(&xdr, res->pathconf); return status; } /* * STATFS request */ -static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) +static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, + struct nfs4_statfs_res *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -4304,9 +5363,11 @@ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fssta xdr_init_decode(&xdr, &req->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); if (!status) + status = decode_sequence(&xdr, &res->seq_res, req); + if (!status) status = decode_putfh(&xdr); if (!status) - status = decode_statfs(&xdr, fsstat); + status = decode_statfs(&xdr, res->fsstat); return status; } @@ -4320,7 +5381,11 @@ static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4 int status; xdr_init_decode(&xdr, &req->rq_rcv_buf, p); - if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) + status = decode_compound_hdr(&xdr, &hdr); + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, req); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; @@ -4359,8 +5424,6 @@ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, status = decode_compound_hdr(&xdr, &hdr); if (!status) status = decode_setclientid(&xdr, clp); - if (!status) - status = -nfs4_stat_to_errno(hdr.status); return status; } @@ -4381,8 +5444,6 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, str status = decode_putrootfh(&xdr); if (!status) status = decode_fsinfo(&xdr, fsinfo); - if (!status) - status = -nfs4_stat_to_errno(hdr.status); return status; } @@ -4397,13 +5458,17 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nf xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); - if (status != 0) + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, rqstp); + if (status) goto out; status = decode_putfh(&xdr); if (status != 0) goto out; status = decode_delegreturn(&xdr); - decode_getfattr(&xdr, res->fattr, res->server); + decode_getfattr(&xdr, res->fattr, res->server, + !RPC_IS_ASYNC(rqstp->rq_task)); out: return status; } @@ -4411,7 +5476,8 @@ out: /* * FS_LOCATIONS request */ -static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) +static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, + struct nfs4_fs_locations_res *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -4419,18 +5485,114 @@ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs xdr_init_decode(&xdr, &req->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); - if (status != 0) + if (status) + goto out; + status = decode_sequence(&xdr, &res->seq_res, req); + if (status) goto out; if ((status = decode_putfh(&xdr)) != 0) goto out; if ((status = decode_lookup(&xdr)) != 0) goto out; xdr_enter_page(&xdr, PAGE_SIZE); - status = decode_getfattr(&xdr, &res->fattr, res->server); + status = decode_getfattr(&xdr, &res->fs_locations->fattr, + res->fs_locations->server, + !RPC_IS_ASYNC(req->rq_task)); out: return status; } +#if defined(CONFIG_NFS_V4_1) +/* + * EXCHANGE_ID request + */ +static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, + void *res) +{ + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (!status) + status = decode_exchange_id(&xdr, res); + return status; +} + +/* + * a CREATE_SESSION request + */ +static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, + struct nfs41_create_session_res *res) +{ + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (!status) + status = decode_create_session(&xdr, res); + return status; +} + +/* + * a DESTROY_SESSION request + */ +static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, + void *dummy) +{ + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (!status) + status = decode_destroy_session(&xdr, dummy); + return status; +} + +/* + * a SEQUENCE request + */ +static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, + struct nfs4_sequence_res *res) +{ + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (!status) + status = decode_sequence(&xdr, res, rqstp); + return status; +} + +/* + * a GET_LEASE_TIME request + */ +static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, + struct nfs4_get_lease_time_res *res) +{ + struct xdr_stream xdr; + struct compound_hdr hdr; + int status; + + xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); + status = decode_compound_hdr(&xdr, &hdr); + if (!status) + status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); + if (!status) + status = decode_putrootfh(&xdr); + if (!status) + status = decode_fsinfo(&xdr, res->lr_fsinfo); + return status; +} +#endif /* CONFIG_NFS_V4_1 */ + __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) { uint32_t bitmap[2] = {0}; @@ -4492,42 +5654,41 @@ static struct { int errno; } nfs_errtbl[] = { { NFS4_OK, 0 }, - { NFS4ERR_PERM, EPERM }, - { NFS4ERR_NOENT, ENOENT }, - { NFS4ERR_IO, errno_NFSERR_IO }, - { NFS4ERR_NXIO, ENXIO }, - { NFS4ERR_ACCESS, EACCES }, - { NFS4ERR_EXIST, EEXIST }, - { NFS4ERR_XDEV, EXDEV }, - { NFS4ERR_NOTDIR, ENOTDIR }, - { NFS4ERR_ISDIR, EISDIR }, - { NFS4ERR_INVAL, EINVAL }, - { NFS4ERR_FBIG, EFBIG }, - { NFS4ERR_NOSPC, ENOSPC }, - { NFS4ERR_ROFS, EROFS }, - { NFS4ERR_MLINK, EMLINK }, - { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, - { NFS4ERR_NOTEMPTY, ENOTEMPTY }, - { NFS4ERR_DQUOT, EDQUOT }, - { NFS4ERR_STALE, ESTALE }, - { NFS4ERR_BADHANDLE, EBADHANDLE }, - { NFS4ERR_BADOWNER, EINVAL }, - { NFS4ERR_BADNAME, EINVAL }, - { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, - { NFS4ERR_NOTSUPP, ENOTSUPP }, - { NFS4ERR_TOOSMALL, ETOOSMALL }, - { NFS4ERR_SERVERFAULT, ESERVERFAULT }, - { NFS4ERR_BADTYPE, EBADTYPE }, - { NFS4ERR_LOCKED, EAGAIN }, - { NFS4ERR_RESOURCE, EREMOTEIO }, - { NFS4ERR_SYMLINK, ELOOP }, - { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, - { NFS4ERR_DEADLOCK, EDEADLK }, - { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs + { NFS4ERR_PERM, -EPERM }, + { NFS4ERR_NOENT, -ENOENT }, + { NFS4ERR_IO, -errno_NFSERR_IO}, + { NFS4ERR_NXIO, -ENXIO }, + { NFS4ERR_ACCESS, -EACCES }, + { NFS4ERR_EXIST, -EEXIST }, + { NFS4ERR_XDEV, -EXDEV }, + { NFS4ERR_NOTDIR, -ENOTDIR }, + { NFS4ERR_ISDIR, -EISDIR }, + { NFS4ERR_INVAL, -EINVAL }, + { NFS4ERR_FBIG, -EFBIG }, + { NFS4ERR_NOSPC, -ENOSPC }, + { NFS4ERR_ROFS, -EROFS }, + { NFS4ERR_MLINK, -EMLINK }, + { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, + { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, + { NFS4ERR_DQUOT, -EDQUOT }, + { NFS4ERR_STALE, -ESTALE }, + { NFS4ERR_BADHANDLE, -EBADHANDLE }, + { NFS4ERR_BADOWNER, -EINVAL }, + { NFS4ERR_BADNAME, -EINVAL }, + { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, + { NFS4ERR_NOTSUPP, -ENOTSUPP }, + { NFS4ERR_TOOSMALL, -ETOOSMALL }, + { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, + { NFS4ERR_BADTYPE, -EBADTYPE }, + { NFS4ERR_LOCKED, -EAGAIN }, + { NFS4ERR_SYMLINK, -ELOOP }, + { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, + { NFS4ERR_DEADLOCK, -EDEADLK }, + { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs * to be handled by a * middle-layer. */ - { -1, EIO } + { -1, -EIO } }; /* @@ -4544,14 +5705,14 @@ nfs4_stat_to_errno(int stat) } if (stat <= 10000 || stat > 10100) { /* The server is looney tunes. */ - return ESERVERFAULT; + return -ESERVERFAULT; } /* If we cannot translate the error, the recovery routines should * handle it. * Note: remaining NFSv4 error codes have values > 10000, so should * not conflict with native Linux error codes. */ - return stat; + return -stat; } #define PROC(proc, argtype, restype) \ @@ -4563,7 +5724,7 @@ nfs4_stat_to_errno(int stat) .p_replen = NFS4_##restype##_sz, \ .p_statidx = NFSPROC4_CLNT_##proc, \ .p_name = #proc, \ - } +} struct rpc_procinfo nfs4_procedures[] = { PROC(READ, enc_read, dec_read), @@ -4600,6 +5761,13 @@ struct rpc_procinfo nfs4_procedures[] = { PROC(GETACL, enc_getacl, dec_getacl), PROC(SETACL, enc_setacl, dec_setacl), PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), +#if defined(CONFIG_NFS_V4_1) + PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), + PROC(CREATE_SESSION, enc_create_session, dec_create_session), + PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), + PROC(SEQUENCE, enc_sequence, dec_sequence), + PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), +#endif /* CONFIG_NFS_V4_1 */ }; struct rpc_version nfs_version4 = {