[NET]: ipconfig and nfsroot annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index 8dfefe4..75f819d 100644 (file)
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -98,7 +98,7 @@
 static char nfs_root_name[256] __initdata = "";
 
 /* Address of NFS server */
-static __u32 servaddr __initdata = 0;
+static __be32 servaddr __initdata = 0;
 
 /* Name of directory to mount */
 static char nfs_path[NFS_MAXPATHLEN] __initdata = { 0, };
@@ -327,7 +327,7 @@ static int __init root_nfs_name(char *name)
  */
 static int __init root_nfs_addr(void)
 {
-       if ((servaddr = root_server_addr) == INADDR_NONE) {
+       if ((servaddr = root_server_addr) == htonl(INADDR_NONE)) {
                printk(KERN_ERR "Root-NFS: No NFS server available, giving up.\n");
                return -1;
        }
@@ -411,7 +411,7 @@ __setup("nfsroot=", nfs_root_setup);
  *  Construct sockaddr_in from address and port number.
  */
 static inline void
-set_sockaddr(struct sockaddr_in *sin, __u32 addr, __u16 port)
+set_sockaddr(struct sockaddr_in *sin, __be32 addr, __be16 port)
 {
        sin->sin_family = AF_INET;
        sin->sin_addr.s_addr = addr;
@@ -468,14 +468,13 @@ static int __init root_nfs_ports(void)
                dprintk("Root-NFS: Portmapper on server returned %d "
                        "as nfsd port\n", port);
        }
-       nfs_port = htons(nfs_port);
 
        if ((port = root_nfs_getport(NFS_MNT_PROGRAM, mountd_ver, proto)) < 0) {
                printk(KERN_ERR "Root-NFS: Unable to get mountd port "
                                "number from server, using default\n");
                port = mountd_port;
        }
-       mount_port = htons(port);
+       mount_port = port;
        dprintk("Root-NFS: mountd port is %d\n", port);
 
        return 0;
@@ -496,7 +495,7 @@ static int __init root_nfs_get_handle(void)
        int version = (nfs_data.flags & NFS_MOUNT_VER3) ?
                                        NFS_MNT3_VERSION : NFS_MNT_VERSION;
 
-       set_sockaddr(&sin, servaddr, mount_port);
+       set_sockaddr(&sin, servaddr, htons(mount_port));
        status = nfsroot_mount(&sin, nfs_path, &fh, version, protocol);
        if (status < 0)
                printk(KERN_ERR "Root-NFS: Server returned error %d "
@@ -519,6 +518,6 @@ void * __init nfs_root_data(void)
         || root_nfs_ports() < 0
         || root_nfs_get_handle() < 0)
                return NULL;
-       set_sockaddr((struct sockaddr_in *) &nfs_data.addr, servaddr, nfs_port);
+       set_sockaddr((struct sockaddr_in *) &nfs_data.addr, servaddr, htons(nfs_port));
        return (void*)&nfs_data;
 }

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 45228c1..625ffea 100644 (file)
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -318,7 +318,7 @@ extern void put_nfs_open_context(struct nfs_open_context *ctx);
 extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
 
 /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
-extern u32 root_nfs_parse_addr(char *name); /*__init*/
+extern __be32 root_nfs_parse_addr(char *name); /*__init*/
 
 static inline void nfs_fattr_init(struct nfs_fattr *fattr)
 {

diff --git a/include/net/ipconfig.h b/include/net/ipconfig.h
index 2a1fe99..3924d7d 100644 (file)
--- a/include/net/ipconfig.h
+++ b/include/net/ipconfig.h
@@ -11,12 +11,12 @@
 extern int ic_proto_enabled;   /* Protocols enabled (see IC_xxx) */
 extern int ic_set_manually;    /* IPconfig parameters set manually */
 
-extern u32 ic_myaddr;          /* My IP address */
-extern u32 ic_gateway;         /* Gateway IP address */
+extern __be32 ic_myaddr;               /* My IP address */
+extern __be32 ic_gateway;              /* Gateway IP address */
 
-extern u32 ic_servaddr;                /* Boot server IP address */
+extern __be32 ic_servaddr;             /* Boot server IP address */
 
-extern u32 root_server_addr;   /* Address of NFS server */
+extern __be32 root_server_addr;        /* Address of NFS server */
 extern u8 root_server_path[];  /* Path to mount as root */
 
 

diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 955a07a..afa60b9 100644 (file)
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -101,6 +101,7 @@
 #define CONF_NAMESERVERS_MAX   3       /* Maximum number of nameservers  
                                            - '3' from resolv.h */
 
+#define NONE __constant_htonl(INADDR_NONE)
 
 /*
  * Public IP configuration
@@ -129,19 +130,19 @@ int ic_proto_enabled __initdata = 0
 
 static int ic_host_name_set __initdata = 0;    /* Host name set by us? */
 
-u32 ic_myaddr = INADDR_NONE;           /* My IP address */
-static u32 ic_netmask = INADDR_NONE;   /* Netmask for local subnet */
-u32 ic_gateway = INADDR_NONE;  /* Gateway IP address */
+__be32 ic_myaddr = NONE;               /* My IP address */
+static __be32 ic_netmask = NONE;       /* Netmask for local subnet */
+__be32 ic_gateway = NONE;      /* Gateway IP address */
 
-u32 ic_servaddr = INADDR_NONE; /* Boot server IP address */
+__be32 ic_servaddr = NONE;     /* Boot server IP address */
 
-u32 root_server_addr = INADDR_NONE;    /* Address of NFS server */
+__be32 root_server_addr = NONE;        /* Address of NFS server */
 u8 root_server_path[256] = { 0, };     /* Path to mount as root */
 
 /* Persistent data: */
 
 static int ic_proto_used;                      /* Protocol used, if any */
-static u32 ic_nameservers[CONF_NAMESERVERS_MAX]; /* DNS Server IP addresses */
+static __be32 ic_nameservers[CONF_NAMESERVERS_MAX]; /* DNS Server IP addresses */
 static u8 ic_domain[64];               /* DNS (not NIS) domain name */
 
 /*
@@ -172,7 +173,7 @@ struct ic_device {
        struct net_device *dev;
        unsigned short flags;
        short able;
-       u32 xid;
+       __be32 xid;
 };
 
 static struct ic_device *ic_first_dev __initdata = NULL;/* List of open device */
@@ -223,7 +224,7 @@ static int __init ic_open_devs(void)
                        d->flags = oflags;
                        d->able = able;
                        if (able & IC_BOOTP)
-                               get_random_bytes(&d->xid, sizeof(u32));
+                               get_random_bytes(&d->xid, sizeof(__be32));
                        else
                                d->xid = 0;
                        ic_proto_have_if |= able;
@@ -269,7 +270,7 @@ static void __init ic_close_devs(void)
  */
 
 static inline void
-set_sockaddr(struct sockaddr_in *sin, u32 addr, u16 port)
+set_sockaddr(struct sockaddr_in *sin, __be32 addr, __be16 port)
 {
        sin->sin_family = AF_INET;
        sin->sin_addr.s_addr = addr;
@@ -332,7 +333,7 @@ static int __init ic_setup_routes(void)
 {
        /* No need to setup device routes, only the default route... */
 
-       if (ic_gateway != INADDR_NONE) {
+       if (ic_gateway != NONE) {
                struct rtentry rm;
                int err;
 
@@ -368,10 +369,10 @@ static int __init ic_defaults(void)
        if (!ic_host_name_set)
                sprintf(init_utsname()->nodename, "%u.%u.%u.%u", NIPQUAD(ic_myaddr));
 
-       if (root_server_addr == INADDR_NONE)
+       if (root_server_addr == NONE)
                root_server_addr = ic_servaddr;
 
-       if (ic_netmask == INADDR_NONE) {
+       if (ic_netmask == NONE) {
                if (IN_CLASSA(ntohl(ic_myaddr)))
                        ic_netmask = htonl(IN_CLASSA_NET);
                else if (IN_CLASSB(ntohl(ic_myaddr)))
@@ -420,7 +421,7 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
 {
        struct arphdr *rarp;
        unsigned char *rarp_ptr;
-       u32 sip, tip;
+       __be32 sip, tip;
        unsigned char *sha, *tha;               /* s for "source", t for "target" */
        struct ic_device *d;
 
@@ -485,12 +486,12 @@ ic_rarp_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
                goto drop_unlock;
 
        /* Discard packets which are not from specified server. */
-       if (ic_servaddr != INADDR_NONE && ic_servaddr != sip)
+       if (ic_servaddr != NONE && ic_servaddr != sip)
                goto drop_unlock;
 
        /* We have a winner! */
        ic_dev = dev;
-       if (ic_myaddr == INADDR_NONE)
+       if (ic_myaddr == NONE)
                ic_myaddr = tip;
        ic_servaddr = sip;
        ic_got_reply = IC_RARP;
@@ -530,13 +531,13 @@ struct bootp_pkt {                /* BOOTP packet format */
        u8 htype;               /* HW address type */
        u8 hlen;                /* HW address length */
        u8 hops;                /* Used only by gateways */
-       u32 xid;                /* Transaction ID */
-       u16 secs;               /* Seconds since we started */
-       u16 flags;              /* Just what it says */
-       u32 client_ip;          /* Client's IP address if known */
-       u32 your_ip;            /* Assigned IP address */
-       u32 server_ip;          /* (Next, e.g. NFS) Server's IP address */
-       u32 relay_ip;           /* IP address of BOOTP relay */
+       __be32 xid;             /* Transaction ID */
+       __be16 secs;            /* Seconds since we started */
+       __be16 flags;           /* Just what it says */
+       __be32 client_ip;               /* Client's IP address if known */
+       __be32 your_ip;         /* Assigned IP address */
+       __be32 server_ip;               /* (Next, e.g. NFS) Server's IP address */
+       __be32 relay_ip;                /* IP address of BOOTP relay */
        u8 hw_addr[16];         /* Client's HW address */
        u8 serv_name[64];       /* Server host name */
        u8 boot_file[128];      /* Name of boot file */
@@ -576,7 +577,7 @@ static const u8 ic_bootp_cookie[4] = { 99, 130, 83, 99 };
 static void __init
 ic_dhcp_init_options(u8 *options)
 {
-       u8 mt = ((ic_servaddr == INADDR_NONE)
+       u8 mt = ((ic_servaddr == NONE)
                 ? DHCPDISCOVER : DHCPREQUEST);
        u8 *e = options;
 
@@ -666,7 +667,7 @@ static inline void ic_bootp_init(void)
        int i;
 
        for (i = 0; i < CONF_NAMESERVERS_MAX; i++)
-               ic_nameservers[i] = INADDR_NONE;
+               ic_nameservers[i] = NONE;
 
        dev_add_pack(&bootp_packet_type);
 }
@@ -708,7 +709,7 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
        h->frag_off = htons(IP_DF);
        h->ttl = 64;
        h->protocol = IPPROTO_UDP;
-       h->daddr = INADDR_BROADCAST;
+       h->daddr = htonl(INADDR_BROADCAST);
        h->check = ip_fast_csum((unsigned char *) h, h->ihl);
 
        /* Construct UDP header */
@@ -730,8 +731,8 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
                b->htype = dev->type; /* can cause undefined behavior */
        }
        b->hlen = dev->addr_len;
-       b->your_ip = INADDR_NONE;
-       b->server_ip = INADDR_NONE;
+       b->your_ip = NONE;
+       b->server_ip = NONE;
        memcpy(b->hw_addr, dev->dev_addr, dev->addr_len);
        b->secs = htons(jiffies_diff / HZ);
        b->xid = d->xid;
@@ -788,11 +789,11 @@ static void __init ic_do_bootp_ext(u8 *ext)
 
        switch (*ext++) {
                case 1:         /* Subnet mask */
-                       if (ic_netmask == INADDR_NONE)
+                       if (ic_netmask == NONE)
                                memcpy(&ic_netmask, ext+1, 4);
                        break;
                case 3:         /* Default gateway */
-                       if (ic_gateway == INADDR_NONE)
+                       if (ic_gateway == NONE)
                                memcpy(&ic_gateway, ext+1, 4);
                        break;
                case 6:         /* DNS server */
@@ -800,7 +801,7 @@ static void __init ic_do_bootp_ext(u8 *ext)
                        if (servers > CONF_NAMESERVERS_MAX)
                                servers = CONF_NAMESERVERS_MAX;
                        for (i = 0; i < servers; i++) {
-                               if (ic_nameservers[i] == INADDR_NONE)
+                               if (ic_nameservers[i] == NONE)
                                        memcpy(&ic_nameservers[i], ext+1+4*i, 4);
                        }
                        break;
@@ -917,7 +918,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
 
 #ifdef IPCONFIG_DHCP
                if (ic_proto_enabled & IC_USE_DHCP) {
-                       u32 server_id = INADDR_NONE;
+                       __be32 server_id = NONE;
                        int mt = 0;
 
                        ext = &b->exten[4];
@@ -949,7 +950,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
                                /* While in the process of accepting one offer,
                                 * ignore all others.
                                 */
-                               if (ic_myaddr != INADDR_NONE)
+                               if (ic_myaddr != NONE)
                                        goto drop_unlock;
 
                                /* Let's accept that offer. */
@@ -965,7 +966,7 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
                                 * precedence over the bootp header one if
                                 * they are different.
                                 */
-                               if ((server_id != INADDR_NONE) &&
+                               if ((server_id != NONE) &&
                                    (b->server_ip != server_id))
                                        b->server_ip = ic_servaddr;
                                break;
@@ -979,8 +980,8 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
 
                        default:
                                /* Urque.  Forget it*/
-                               ic_myaddr = INADDR_NONE;
-                               ic_servaddr = INADDR_NONE;
+                               ic_myaddr = NONE;
+                               ic_servaddr = NONE;
                                goto drop_unlock;
                        };
 
@@ -1004,9 +1005,9 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
        ic_dev = dev;
        ic_myaddr = b->your_ip;
        ic_servaddr = b->server_ip;
-       if (ic_gateway == INADDR_NONE && b->relay_ip)
+       if (ic_gateway == NONE && b->relay_ip)
                ic_gateway = b->relay_ip;
-       if (ic_nameservers[0] == INADDR_NONE)
+       if (ic_nameservers[0] == NONE)
                ic_nameservers[0] = ic_servaddr;
        ic_got_reply = IC_BOOTP;
 
@@ -1150,7 +1151,7 @@ static int __init ic_dynamic(void)
 #endif
 
        if (!ic_got_reply) {
-               ic_myaddr = INADDR_NONE;
+               ic_myaddr = NONE;
                return -1;
        }
 
@@ -1182,12 +1183,12 @@ static int pnp_seq_show(struct seq_file *seq, void *v)
                seq_printf(seq,
                           "domain %s\n", ic_domain);
        for (i = 0; i < CONF_NAMESERVERS_MAX; i++) {
-               if (ic_nameservers[i] != INADDR_NONE)
+               if (ic_nameservers[i] != NONE)
                        seq_printf(seq,
                                   "nameserver %u.%u.%u.%u\n",
                                   NIPQUAD(ic_nameservers[i]));
        }
-       if (ic_servaddr != INADDR_NONE)
+       if (ic_servaddr != NONE)
                seq_printf(seq,
                           "bootserver %u.%u.%u.%u\n",
                           NIPQUAD(ic_servaddr));
@@ -1213,9 +1214,9 @@ static struct file_operations pnp_seq_fops = {
  *  need to have root_server_addr set _before_ IPConfig gets called as it
  *  can override it.
  */
-u32 __init root_nfs_parse_addr(char *name)
+__be32 __init root_nfs_parse_addr(char *name)
 {
-       u32 addr;
+       __be32 addr;
        int octets = 0;
        char *cp, *cq;
 
@@ -1237,7 +1238,7 @@ u32 __init root_nfs_parse_addr(char *name)
                addr = in_aton(name);
                memmove(name, cp, strlen(cp) + 1);
        } else
-               addr = INADDR_NONE;
+               addr = NONE;
 
        return addr;
 }
@@ -1248,7 +1249,7 @@ u32 __init root_nfs_parse_addr(char *name)
 
 static int __init ip_auto_config(void)
 {
-       u32 addr;
+       __be32 addr;
 
 #ifdef CONFIG_PROC_FS
        proc_net_fops_create("pnp", S_IRUGO, &pnp_seq_fops);
@@ -1277,11 +1278,11 @@ static int __init ip_auto_config(void)
         * interfaces and no default was set), use BOOTP or RARP to get the
         * missing values.
         */
-       if (ic_myaddr == INADDR_NONE ||
+       if (ic_myaddr == NONE ||
 #ifdef CONFIG_ROOT_NFS
            (MAJOR(ROOT_DEV) == UNNAMED_MAJOR
-            && root_server_addr == INADDR_NONE
-            && ic_servaddr == INADDR_NONE) ||
+            && root_server_addr == NONE
+            && ic_servaddr == NONE) ||
 #endif
            ic_first_dev->next) {
 #ifdef IPCONFIG_DYNAMIC
@@ -1334,7 +1335,7 @@ static int __init ip_auto_config(void)
        }
 
        addr = root_nfs_parse_addr(root_server_path);
-       if (root_server_addr == INADDR_NONE)
+       if (root_server_addr == NONE)
                root_server_addr = addr;
 
        /*
@@ -1461,19 +1462,19 @@ static int __init ip_auto_config_setup(char *addrs)
                        switch (num) {
                        case 0:
                                if ((ic_myaddr = in_aton(ip)) == INADDR_ANY)
-                                       ic_myaddr = INADDR_NONE;
+                                       ic_myaddr = NONE;
                                break;
                        case 1:
                                if ((ic_servaddr = in_aton(ip)) == INADDR_ANY)
-                                       ic_servaddr = INADDR_NONE;
+                                       ic_servaddr = NONE;
                                break;
                        case 2:
                                if ((ic_gateway = in_aton(ip)) == INADDR_ANY)
-                                       ic_gateway = INADDR_NONE;
+                                       ic_gateway = NONE;
                                break;
                        case 3:
                                if ((ic_netmask = in_aton(ip)) == INADDR_ANY)
-                                       ic_netmask = INADDR_NONE;
+                                       ic_netmask = NONE;
                                break;
                        case 4:
                                if ((dp = strchr(ip, '.'))) {