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author | Arturo Borrero <arturo.borrero.glez@gmail.com> | 2014-04-01 14:06:44 +0200 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-04-07 10:52:05 +0200 |
commit | 5d20b27ac4365ab153afe476895926ede9b74528 (patch) | |
tree | 450ededdfa91d783f388e83a9e11248f26b3dca4 /examples/nft-events.c | |
parent | e7ff8bab1f72c5b45ead02a0e5302359616e5cdc (diff) |
examples: complete nft-events example
Complete nft-events example by adding a basic set & set_elem event
notification.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'examples/nft-events.c')
-rw-r--r-- | examples/nft-events.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/examples/nft-events.c b/examples/nft-events.c index 150346a..989f4bd 100644 --- a/examples/nft-events.c +++ b/examples/nft-events.c @@ -21,6 +21,7 @@ #include <libnftnl/table.h> #include <libnftnl/chain.h> #include <libnftnl/rule.h> +#include <libnftnl/set.h> static int table_cb(const struct nlmsghdr *nlh, int type) { @@ -97,6 +98,57 @@ err: return MNL_CB_OK; } +static int set_cb(const struct nlmsghdr *nlh, int type) +{ + struct nft_set *t; + char buf[4096]; + + t = nft_set_alloc(); + if (t == NULL) { + perror("OOM"); + goto err; + } + + if (nft_set_nlmsg_parse(nlh, t) < 0) { + perror("nft_set_nlmsg_parse"); + goto err_free; + } + + nft_set_snprintf(buf, sizeof(buf), t, NFT_OUTPUT_DEFAULT, 0); + printf("[%s]\t%s\n", type == NFT_MSG_NEWSET ? "NEW" : "DEL", buf); + +err_free: + nft_set_free(t); +err: + return MNL_CB_OK; +} + +static int setelem_cb(const struct nlmsghdr *nlh, int type) +{ + + struct nft_set *s; + char buf[4096]; + + s = nft_set_alloc(); + if (s == NULL) { + perror("OOM"); + goto err; + } + + if (nft_set_elems_nlmsg_parse(nlh, s) < 0) { + perror("nft_set_nlmsg_parse"); + goto err_free; + } + + nft_set_snprintf(buf, sizeof(buf), s, NFT_OUTPUT_DEFAULT, 0); + printf("[%s]\t%s\n", type == NFT_MSG_NEWSETELEM ? "NEW" : "DEL", buf); + +err_free: + nft_set_free(s); +err: + return MNL_CB_OK; +} + static int events_cb(const struct nlmsghdr *nlh, void *data) { int ret = MNL_CB_OK; @@ -115,6 +167,14 @@ static int events_cb(const struct nlmsghdr *nlh, void *data) case NFT_MSG_DELRULE: ret = rule_cb(nlh, type); break; + case NFT_MSG_NEWSET: + case NFT_MSG_DELSET: + ret = set_cb(nlh, type); + break; + case NFT_MSG_NEWSETELEM: + case NFT_MSG_DELSETELEM: + ret = setelem_cb(nlh, type); + break; } return ret; |