X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fsysctl.h;h=877ba039e6a4b04a2adec72db41c429fc38c2a37;hb=f653398c86a1c104f0992bd788dd4bb065449be4;hp=bf4ae4e138f747d79c2903b7a09771f5145112c4;hpb=29e75252da20f3ab9e132c68c9aed156b87beae6;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index bf4ae4e..877ba03 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -15,9 +15,6 @@ ** The kernel will then return -ENOTDIR to any application using ** the old binary interface. ** - ** For new interfaces unless you really need a binary number - ** please use CTL_UNNUMBERED. - ** **************************************************************** **************************************************************** */ @@ -29,7 +26,6 @@ #include #include -struct file; struct completion; #define CTL_MAXNAME 10 /* how many path components do we allow in a @@ -51,12 +47,6 @@ struct __sysctl_args { /* Top-level names: */ -/* For internal pattern-matching use only: */ -#ifdef __KERNEL__ -#define CTL_NONE 0 -#define CTL_UNNUMBERED CTL_NONE /* sysctl without a binary number */ -#endif - enum { CTL_KERN=1, /* General kernel info and control */ @@ -99,10 +89,9 @@ enum KERN_VERSION=4, /* string: compile time info */ KERN_SECUREMASK=5, /* struct: maximum rights mask */ KERN_PROF=6, /* table: profiling information */ - KERN_NODENAME=7, - KERN_DOMAINNAME=8, + KERN_NODENAME=7, /* string: hostname */ + KERN_DOMAINNAME=8, /* string: domainname */ - KERN_CAP_BSET=14, /* int: capability bounding set */ KERN_PANIC=15, /* int: panic timeout */ KERN_REALROOTDEV=16, /* real root device to mount after initrd */ @@ -113,8 +102,8 @@ enum KERN_PPC_HTABRECLAIM=25, /* turn htab reclaimation on/off on PPC */ KERN_PPC_ZEROPAGED=26, /* turn idle page zeroing on/off on PPC */ KERN_PPC_POWERSAVE_NAP=27, /* use nap mode for power saving */ - KERN_MODPROBE=28, - KERN_SG_BIG_BUFF=29, + KERN_MODPROBE=28, /* string: modprobe path */ + KERN_SG_BIG_BUFF=29, /* int: sg driver reserved buffer size */ KERN_ACCT=30, /* BSD process accounting parameters */ KERN_PPC_L2CR=31, /* l2cr register on PPC */ @@ -161,7 +150,7 @@ enum KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */ KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ KERN_COMPAT_LOG=73, /* int: print compat layer messages */ - KERN_MAX_LOCK_DEPTH=74, + KERN_MAX_LOCK_DEPTH=74, /* int: rtmutex's maximum lock depth */ KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */ KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ }; @@ -491,6 +480,8 @@ enum NET_IPV4_CONF_ARP_IGNORE=19, NET_IPV4_CONF_PROMOTE_SECONDARIES=20, NET_IPV4_CONF_ARP_ACCEPT=21, + NET_IPV4_CONF_ARP_NOTIFY=22, + NET_IPV4_CONF_ACCEPT_LOCAL=23, __NET_IPV4_CONF_MAX }; @@ -946,60 +937,57 @@ enum /* For the /proc/sys support */ struct ctl_table; struct nsproxy; +struct ctl_table_root; + +struct ctl_table_set { + struct list_head list; + struct ctl_table_set *parent; + int (*is_seen)(struct ctl_table_set *); +}; + +extern void setup_sysctl_set(struct ctl_table_set *p, + struct ctl_table_set *parent, + int (*is_seen)(struct ctl_table_set *)); + +struct ctl_table_header; + +extern void sysctl_head_get(struct ctl_table_header *); +extern void sysctl_head_put(struct ctl_table_header *); +extern int sysctl_is_seen(struct ctl_table_header *); +extern struct ctl_table_header *sysctl_head_grab(struct ctl_table_header *); extern struct ctl_table_header *sysctl_head_next(struct ctl_table_header *prev); extern struct ctl_table_header *__sysctl_head_next(struct nsproxy *namespaces, struct ctl_table_header *prev); extern void sysctl_head_finish(struct ctl_table_header *prev); -extern int sysctl_perm(struct ctl_table *table, int op); +extern int sysctl_perm(struct ctl_table_root *root, + struct ctl_table *table, int op); typedef struct ctl_table ctl_table; -typedef int ctl_handler (struct ctl_table *table, int __user *name, int nlen, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen); - -typedef int proc_handler (struct ctl_table *ctl, int write, struct file * filp, +typedef int proc_handler (struct ctl_table *ctl, int write, void __user *buffer, size_t *lenp, loff_t *ppos); -extern int proc_dostring(struct ctl_table *, int, struct file *, +extern int proc_dostring(struct ctl_table *, int, void __user *, size_t *, loff_t *); -extern int proc_dointvec(struct ctl_table *, int, struct file *, +extern int proc_dointvec(struct ctl_table *, int, void __user *, size_t *, loff_t *); -extern int proc_dointvec_bset(struct ctl_table *, int, struct file *, - void __user *, size_t *, loff_t *); -extern int proc_dointvec_minmax(struct ctl_table *, int, struct file *, +extern int proc_dointvec_minmax(struct ctl_table *, int, void __user *, size_t *, loff_t *); -extern int proc_dointvec_jiffies(struct ctl_table *, int, struct file *, +extern int proc_dointvec_jiffies(struct ctl_table *, int, void __user *, size_t *, loff_t *); -extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int, struct file *, +extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int, void __user *, size_t *, loff_t *); -extern int proc_dointvec_ms_jiffies(struct ctl_table *, int, struct file *, +extern int proc_dointvec_ms_jiffies(struct ctl_table *, int, void __user *, size_t *, loff_t *); -extern int proc_doulongvec_minmax(struct ctl_table *, int, struct file *, +extern int proc_doulongvec_minmax(struct ctl_table *, int, void __user *, size_t *, loff_t *); extern int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int, - struct file *, void __user *, size_t *, loff_t *); - -extern int do_sysctl (int __user *name, int nlen, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen); - -extern int do_sysctl_strategy (struct ctl_table *table, - int __user *name, int nlen, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen); - -extern ctl_handler sysctl_data; -extern ctl_handler sysctl_string; -extern ctl_handler sysctl_intvec; -extern ctl_handler sysctl_jiffies; -extern ctl_handler sysctl_ms_jiffies; - + void __user *, size_t *, loff_t *); /* * Register a set of sysctl names by calling register_sysctl_table - * with an initialised array of struct ctl_table's. An entry with zero - * ctl_name and NULL procname terminates the table. table->de will be + * with an initialised array of struct ctl_table's. An entry with + * NULL procname terminates the table. table->de will be * set up by the registration and need not be initialised in advance. * * sysctl names can be mirrored automatically under /proc/sys. The @@ -1012,24 +1000,11 @@ extern ctl_handler sysctl_ms_jiffies; * under /proc; non-leaf nodes will be represented by directories. A * null procname disables /proc mirroring at this node. * - * sysctl entries with a zero ctl_name will not be available through - * the binary sysctl interface. - * * sysctl(2) can automatically manage read and write requests through * the sysctl table. The data and maxlen fields of the ctl_table * struct enable minimal validation of the values being written to be * performed, and the mode field allows minimal authentication. * - * More sophisticated management can be enabled by the provision of a - * strategy routine with the table entry. This will be called before - * any automatic read or write of the data is performed. - * - * The strategy routine may return: - * <0: Error occurred (error is passed to user process) - * 0: OK - proceed with automatic read or write. - * >0: OK - read or write has been done by the strategy routine, so - * return immediately. - * * There must be a proc_handler routine for any terminal nodes * mirrored under /proc/sys (non-terminals are handled by a built-in * directory handler). Several default handlers are available to @@ -1039,7 +1014,6 @@ extern ctl_handler sysctl_ms_jiffies; /* A sysctl table is an array of struct ctl_table: */ struct ctl_table { - int ctl_name; /* Binary ID */ const char *procname; /* Text ID for /proc/sys, or zero */ void *data; int maxlen; @@ -1047,16 +1021,17 @@ struct ctl_table struct ctl_table *child; struct ctl_table *parent; /* Automatically set */ proc_handler *proc_handler; /* Callback for text formatting */ - ctl_handler *strategy; /* Callback function for all r/w */ void *extra1; void *extra2; }; struct ctl_table_root { struct list_head root_list; - struct list_head header_list; - struct list_head *(*lookup)(struct ctl_table_root *root, + struct ctl_table_set default_set; + struct ctl_table_set *(*lookup)(struct ctl_table_root *root, struct nsproxy *namespaces); + int (*permissions)(struct ctl_table_root *root, + struct nsproxy *namespaces, struct ctl_table *table); }; /* struct ctl_table_header is used to maintain dynamic lists of @@ -1066,15 +1041,19 @@ struct ctl_table_header struct ctl_table *ctl_table; struct list_head ctl_entry; int used; + int count; struct completion *unregistering; struct ctl_table *ctl_table_arg; struct ctl_table_root *root; + struct ctl_table_set *set; + struct ctl_table *attached_by; + struct ctl_table *attached_to; + struct ctl_table_header *parent; }; /* struct ctl_path describes where in the hierarchy a table is added */ struct ctl_path { const char *procname; - int ctl_name; }; void register_sysctl_root(struct ctl_table_root *root); @@ -1088,8 +1067,6 @@ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path, void unregister_sysctl_table(struct ctl_table_header * table); int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table); -#else /* __KERNEL__ */ - #endif /* __KERNEL__ */ #endif /* _LINUX_SYSCTL_H */