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[NET]: ipconfig and nfsroot annotations

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Al Viro
2006-11-08 00:19:38 -08:00
committed by David S. Miller
parent 3e6c8cd566
commit 5a874db4d9
4 changed files with 64 additions and 64 deletions
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105
net/ipv4/ipconfig.c
View File

@@ -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, '.'))) {