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path: root/net/ipv4/fib_trie.c
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Diffstat (limited to 'net/ipv4/fib_trie.c')
-rw-r--r--net/ipv4/fib_trie.c110
1 files changed, 49 insertions, 61 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 01801c0f885..9c3ff6ba6e2 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1124,17 +1124,14 @@ err:
return fa_head;
}
-static int
-fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
- struct nlmsghdr *nlhdr, struct netlink_skb_parms *req)
+static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
{
struct trie *t = (struct trie *) tb->tb_data;
struct fib_alias *fa, *new_fa;
struct list_head *fa_head = NULL;
struct fib_info *fi;
- int plen = r->rtm_dst_len;
- int type = r->rtm_type;
- u8 tos = r->rtm_tos;
+ int plen = cfg->fc_dst_len;
+ u8 tos = cfg->fc_tos;
u32 key, mask;
int err;
struct leaf *l;
@@ -1142,13 +1139,9 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
if (plen > 32)
return -EINVAL;
- key = 0;
- if (rta->rta_dst)
- memcpy(&key, rta->rta_dst, 4);
-
- key = ntohl(key);
+ key = ntohl(cfg->fc_dst);
- pr_debug("Insert table=%d %08x/%d\n", tb->tb_id, key, plen);
+ pr_debug("Insert table=%u %08x/%d\n", tb->tb_id, key, plen);
mask = ntohl(inet_make_mask(plen));
@@ -1157,10 +1150,11 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
key = key & mask;
- fi = fib_create_info(r, rta, nlhdr, &err);
-
- if (!fi)
+ fi = fib_create_info(cfg);
+ if (IS_ERR(fi)) {
+ err = PTR_ERR(fi);
goto err;
+ }
l = fib_find_node(t, key);
fa = NULL;
@@ -1185,10 +1179,10 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
struct fib_alias *fa_orig;
err = -EEXIST;
- if (nlhdr->nlmsg_flags & NLM_F_EXCL)
+ if (cfg->fc_nlflags & NLM_F_EXCL)
goto out;
- if (nlhdr->nlmsg_flags & NLM_F_REPLACE) {
+ if (cfg->fc_nlflags & NLM_F_REPLACE) {
struct fib_info *fi_drop;
u8 state;
@@ -1200,8 +1194,8 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
fi_drop = fa->fa_info;
new_fa->fa_tos = fa->fa_tos;
new_fa->fa_info = fi;
- new_fa->fa_type = type;
- new_fa->fa_scope = r->rtm_scope;
+ new_fa->fa_type = cfg->fc_type;
+ new_fa->fa_scope = cfg->fc_scope;
state = fa->fa_state;
new_fa->fa_state &= ~FA_S_ACCESSED;
@@ -1224,17 +1218,17 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
break;
if (fa->fa_info->fib_priority != fi->fib_priority)
break;
- if (fa->fa_type == type &&
- fa->fa_scope == r->rtm_scope &&
+ if (fa->fa_type == cfg->fc_type &&
+ fa->fa_scope == cfg->fc_scope &&
fa->fa_info == fi) {
goto out;
}
}
- if (!(nlhdr->nlmsg_flags & NLM_F_APPEND))
+ if (!(cfg->fc_nlflags & NLM_F_APPEND))
fa = fa_orig;
}
err = -ENOENT;
- if (!(nlhdr->nlmsg_flags & NLM_F_CREATE))
+ if (!(cfg->fc_nlflags & NLM_F_CREATE))
goto out;
err = -ENOBUFS;
@@ -1244,8 +1238,8 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
new_fa->fa_info = fi;
new_fa->fa_tos = tos;
- new_fa->fa_type = type;
- new_fa->fa_scope = r->rtm_scope;
+ new_fa->fa_type = cfg->fc_type;
+ new_fa->fa_scope = cfg->fc_scope;
new_fa->fa_state = 0;
/*
* Insert new entry to the list.
@@ -1262,7 +1256,8 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
(fa ? &fa->fa_list : fa_head));
rt_cache_flush(-1);
- rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id, nlhdr, req);
+ rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id,
+ &cfg->fc_nlinfo);
succeeded:
return 0;
@@ -1548,28 +1543,21 @@ static int trie_leaf_remove(struct trie *t, t_key key)
return 1;
}
-static int
-fn_trie_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
- struct nlmsghdr *nlhdr, struct netlink_skb_parms *req)
+static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg)
{
struct trie *t = (struct trie *) tb->tb_data;
u32 key, mask;
- int plen = r->rtm_dst_len;
- u8 tos = r->rtm_tos;
+ int plen = cfg->fc_dst_len;
+ u8 tos = cfg->fc_tos;
struct fib_alias *fa, *fa_to_delete;
struct list_head *fa_head;
struct leaf *l;
struct leaf_info *li;
-
if (plen > 32)
return -EINVAL;
- key = 0;
- if (rta->rta_dst)
- memcpy(&key, rta->rta_dst, 4);
-
- key = ntohl(key);
+ key = ntohl(cfg->fc_dst);
mask = ntohl(inet_make_mask(plen));
if (key & ~mask)
@@ -1598,13 +1586,12 @@ fn_trie_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
if (fa->fa_tos != tos)
break;
- if ((!r->rtm_type ||
- fa->fa_type == r->rtm_type) &&
- (r->rtm_scope == RT_SCOPE_NOWHERE ||
- fa->fa_scope == r->rtm_scope) &&
- (!r->rtm_protocol ||
- fi->fib_protocol == r->rtm_protocol) &&
- fib_nh_match(r, nlhdr, rta, fi) == 0) {
+ if ((!cfg->fc_type || fa->fa_type == cfg->fc_type) &&
+ (cfg->fc_scope == RT_SCOPE_NOWHERE ||
+ fa->fa_scope == cfg->fc_scope) &&
+ (!cfg->fc_protocol ||
+ fi->fib_protocol == cfg->fc_protocol) &&
+ fib_nh_match(cfg, fi) == 0) {
fa_to_delete = fa;
break;
}
@@ -1614,7 +1601,8 @@ fn_trie_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
return -ESRCH;
fa = fa_to_delete;
- rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id, nlhdr, req);
+ rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id,
+ &cfg->fc_nlinfo);
l = fib_find_node(t, key);
li = find_leaf_info(l, plen);
@@ -1848,7 +1836,7 @@ static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, struct fi
u32 xkey = htonl(key);
- s_i = cb->args[3];
+ s_i = cb->args[4];
i = 0;
/* rcu_read_lock is hold by caller */
@@ -1866,16 +1854,16 @@ static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, struct fi
tb->tb_id,
fa->fa_type,
fa->fa_scope,
- &xkey,
+ xkey,
plen,
fa->fa_tos,
fa->fa_info, 0) < 0) {
- cb->args[3] = i;
+ cb->args[4] = i;
return -1;
}
i++;
}
- cb->args[3] = i;
+ cb->args[4] = i;
return skb->len;
}
@@ -1886,14 +1874,14 @@ static int fn_trie_dump_plen(struct trie *t, int plen, struct fib_table *tb, str
struct list_head *fa_head;
struct leaf *l = NULL;
- s_h = cb->args[2];
+ s_h = cb->args[3];
for (h = 0; (l = nextleaf(t, l)) != NULL; h++) {
if (h < s_h)
continue;
if (h > s_h)
- memset(&cb->args[3], 0,
- sizeof(cb->args) - 3*sizeof(cb->args[0]));
+ memset(&cb->args[4], 0,
+ sizeof(cb->args) - 4*sizeof(cb->args[0]));
fa_head = get_fa_head(l, plen);
@@ -1904,11 +1892,11 @@ static int fn_trie_dump_plen(struct trie *t, int plen, struct fib_table *tb, str
continue;
if (fn_trie_dump_fa(l->key, plen, fa_head, tb, skb, cb)<0) {
- cb->args[2] = h;
+ cb->args[3] = h;
return -1;
}
}
- cb->args[2] = h;
+ cb->args[3] = h;
return skb->len;
}
@@ -1917,23 +1905,23 @@ static int fn_trie_dump(struct fib_table *tb, struct sk_buff *skb, struct netlin
int m, s_m;
struct trie *t = (struct trie *) tb->tb_data;
- s_m = cb->args[1];
+ s_m = cb->args[2];
rcu_read_lock();
for (m = 0; m <= 32; m++) {
if (m < s_m)
continue;
if (m > s_m)
- memset(&cb->args[2], 0,
- sizeof(cb->args) - 2*sizeof(cb->args[0]));
+ memset(&cb->args[3], 0,
+ sizeof(cb->args) - 3*sizeof(cb->args[0]));
if (fn_trie_dump_plen(t, 32-m, tb, skb, cb)<0) {
- cb->args[1] = m;
+ cb->args[2] = m;
goto out;
}
}
rcu_read_unlock();
- cb->args[1] = m;
+ cb->args[2] = m;
return skb->len;
out:
rcu_read_unlock();
@@ -1943,9 +1931,9 @@ out:
/* Fix more generic FIB names for init later */
#ifdef CONFIG_IP_MULTIPLE_TABLES
-struct fib_table * fib_hash_init(int id)
+struct fib_table * fib_hash_init(u32 id)
#else
-struct fib_table * __init fib_hash_init(int id)
+struct fib_table * __init fib_hash_init(u32 id)
#endif
{
struct fib_table *tb;