diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-29 22:54:01 +1100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-29 22:54:01 +1100 |
| commit | 0ba6c33bcddc64a54b5f1c25a696c4767dc76292 (patch) | |
| tree | 62e616f97a4762d8e75bf732e4827af2d15d52c5 /net/netlink/attr.c | |
| parent | 21af0297c7e56024a5ccc4d8ad2a590f9ec371ba (diff) | |
| parent | 85040bcb4643cba578839e953f25e2d1965d83d0 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25: (1470 commits)
[IPV6] ADDRLABEL: Fix double free on label deletion.
[PPP]: Sparse warning fixes.
[IPV4] fib_trie: remove unneeded NULL check
[IPV4] fib_trie: More whitespace cleanup.
[NET_SCHED]: Use nla_policy for attribute validation in ematches
[NET_SCHED]: Use nla_policy for attribute validation in actions
[NET_SCHED]: Use nla_policy for attribute validation in classifiers
[NET_SCHED]: Use nla_policy for attribute validation in packet schedulers
[NET_SCHED]: sch_api: introduce constant for rate table size
[NET_SCHED]: Use typeful attribute parsing helpers
[NET_SCHED]: Use typeful attribute construction helpers
[NET_SCHED]: Use NLA_PUT_STRING for string dumping
[NET_SCHED]: Use nla_nest_start/nla_nest_end
[NET_SCHED]: Propagate nla_parse return value
[NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get
[NET_SCHED]: act_api: use nlmsg_parse
[NET_SCHED]: act_api: fix netlink API conversion bug
[NET_SCHED]: sch_netem: use nla_parse_nested_compat
[NET_SCHED]: sch_atm: fix format string warning
[NETNS]: Add namespace for ICMP replying code.
...
Diffstat (limited to 'net/netlink/attr.c')
| -rw-r--r-- | net/netlink/attr.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/netlink/attr.c b/net/netlink/attr.c index ec39d12c2423..feb326f4a752 100644 --- a/net/netlink/attr.c +++ b/net/netlink/attr.c @@ -430,6 +430,24 @@ int nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data) return 0; } +/** + * nla_append - Add a netlink attribute without header or padding + * @skb: socket buffer to add attribute to + * @attrlen: length of attribute payload + * @data: head of attribute payload + * + * Returns -1 if the tailroom of the skb is insufficient to store + * the attribute payload. + */ +int nla_append(struct sk_buff *skb, int attrlen, const void *data) +{ + if (unlikely(skb_tailroom(skb) < NLA_ALIGN(attrlen))) + return -1; + + memcpy(skb_put(skb, attrlen), data, attrlen); + return 0; +} + EXPORT_SYMBOL(nla_validate); EXPORT_SYMBOL(nla_parse); EXPORT_SYMBOL(nla_find); @@ -445,3 +463,4 @@ EXPORT_SYMBOL(nla_put_nohdr); EXPORT_SYMBOL(nla_memcpy); EXPORT_SYMBOL(nla_memcmp); EXPORT_SYMBOL(nla_strcmp); +EXPORT_SYMBOL(nla_append); |