diff options
| -rw-r--r-- | include/net/netns/ipv4.h | 5 | ||||
| -rw-r--r-- | net/ipv4/fib_rules.c | 44 |
2 files changed, 29 insertions, 20 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 61a28ff..a7bd5d8 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -4,8 +4,10 @@ #ifndef __NETNS_IPV4_H__ #define __NETNS_IPV4_H__ + struct ctl_table_header; struct ipv4_devconf; +struct fib_rules_ops; struct netns_ipv4 { #ifdef CONFIG_SYSCTL @@ -13,5 +15,8 @@ struct netns_ipv4 { #endif struct ipv4_devconf *devconf_all; struct ipv4_devconf *devconf_dflt; +#ifdef CONFIG_IP_MULTIPLE_TABLES + struct fib_rules_ops *rules_ops; +#endif }; #endif diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c index 49819fe..72232ab 100644 --- a/net/ipv4/fib_rules.c +++ b/net/ipv4/fib_rules.c @@ -32,8 +32,6 @@ #include <net/ip_fib.h> #include <net/fib_rules.h> -static struct fib_rules_ops fib4_rules_ops; - struct fib4_rule { struct fib_rule common; @@ -63,7 +61,7 @@ int fib_lookup(struct flowi *flp, struct fib_result *res) }; int err; - err = fib_rules_lookup(&fib4_rules_ops, flp, 0, &arg); + err = fib_rules_lookup(init_net.ipv4.rules_ops, flp, 0, &arg); res->r = arg.rule; return err; @@ -149,6 +147,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb, struct nlmsghdr *nlh, struct fib_rule_hdr *frh, struct nlattr **tb) { + struct net *net = skb->sk->sk_net; int err = -EINVAL; struct fib4_rule *rule4 = (struct fib4_rule *) rule; @@ -159,7 +158,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb, if (rule->action == FR_ACT_TO_TBL) { struct fib_table *table; - table = fib_empty_table(&init_net); + table = fib_empty_table(net); if (table == NULL) { err = -ENOBUFS; goto errout; @@ -250,9 +249,9 @@ static u32 fib4_rule_default_pref(struct fib_rules_ops *ops) struct list_head *pos; struct fib_rule *rule; - if (!list_empty(&fib4_rules_ops.rules_list)) { - pos = fib4_rules_ops.rules_list.next; - if (pos->next != &fib4_rules_ops.rules_list) { + if (!list_empty(&ops->rules_list)) { + pos = ops->rules_list.next; + if (pos->next != &ops->rules_list) { rule = list_entry(pos->next, struct fib_rule, list); if (rule->pref) return rule->pref - 1; @@ -274,7 +273,7 @@ static void fib4_rule_flush_cache(void) rt_cache_flush(-1); } -static struct fib_rules_ops fib4_rules_ops = { +static struct fib_rules_ops fib4_rules_ops_template = { .family = AF_INET, .rule_size = sizeof(struct fib4_rule), .addr_size = sizeof(u32), @@ -288,24 +287,20 @@ static struct fib_rules_ops fib4_rules_ops = { .flush_cache = fib4_rule_flush_cache, .nlgroup = RTNLGRP_IPV4_RULE, .policy = fib4_rule_policy, - .rules_list = LIST_HEAD_INIT(fib4_rules_ops.rules_list), .owner = THIS_MODULE, }; -static int __init fib_default_rules_init(void) +static int fib_default_rules_init(struct fib_rules_ops *ops) { int err; - err = fib_default_rule_add(&fib4_rules_ops, 0, - RT_TABLE_LOCAL, FIB_RULE_PERMANENT); + err = fib_default_rule_add(ops, 0, RT_TABLE_LOCAL, FIB_RULE_PERMANENT); if (err < 0) return err; - err = fib_default_rule_add(&fib4_rules_ops, 0x7FFE, - RT_TABLE_MAIN, 0); + err = fib_default_rule_add(ops, 0x7FFE, RT_TABLE_MAIN, 0); if (err < 0) return err; - err = fib_default_rule_add(&fib4_rules_ops, 0x7FFF, - RT_TABLE_DEFAULT, 0); + err = fib_default_rule_add(ops, 0x7FFF, RT_TABLE_DEFAULT, 0); if (err < 0) return err; return 0; @@ -314,20 +309,29 @@ static int __init fib_default_rules_init(void) int __net_init fib4_rules_init(struct net *net) { int err; + struct fib_rules_ops *ops; + + ops = kmemdup(&fib4_rules_ops_template, sizeof(*ops), GFP_KERNEL); + if (ops == NULL) + return -ENOMEM; + INIT_LIST_HEAD(&ops->rules_list); + fib_rules_register(net, ops); - fib_rules_register(net, &fib4_rules_ops); - err = fib_default_rules_init(); + err = fib_default_rules_init(ops); if (err < 0) goto fail; + net->ipv4.rules_ops = ops; return 0; fail: /* also cleans all rules already added */ - fib_rules_unregister(net, &fib4_rules_ops); + fib_rules_unregister(net, ops); + kfree(ops); return err; } void __net_exit fib4_rules_exit(struct net *net) { - fib_rules_unregister(net, &fib4_rules_ops); + fib_rules_unregister(net, net->ipv4.rules_ops); + kfree(net->ipv4.rules_ops); } |