path: root/include/libnftnl/
diff options
authorCarlos Falgueras García <>2016-03-22 20:46:24 +0100
committerPablo Neira Ayuso <>2016-04-14 02:23:26 +0200
commit5c3bc232dc9d1dd01d589fab096f67d944621fc2 (patch)
tree51d84afbca7fe6adc6b7c0b941ae3dba4f9117bc /include/libnftnl/
parent2d5f3998fa478a4555b0d0599e015b763f03576c (diff)
udata: add TLV user data infrastructure
These functions allow to create a buffer (struct nftnl_udata_buf) of user data attributes in TLV format (struct nftnl_udata). It is inspired by libmnl/src/attr.c. It can be used to store several TLVs sequentially into an object. Example: struct nftnl_udata_buf *buf; struct nftnl_udata *attr; const char *str = "Hello World!"; buf = nftnl_udata_buf_alloc(UDATA_SIZE); if (!buf) { perror("OOM"); exit(EXIT_FAILURE); } if (!nftnl_udata_put_strz(buf, MY_TYPE, str)) { perror("Can't put attribute \"%s\"", str); exit(EXIT_FAILURE); } nftnl_udata_for_each(buf, attr) printf("%s\n", (char *)nftnl_udata_attr_value(attr)); nftnl_udata_buf_free(buf); Signed-off-by: Carlos Falgueras García <> Signed-off-by: Pablo Neira Ayuso <>
Diffstat (limited to 'include/libnftnl/')
1 files changed, 1 insertions, 0 deletions
diff --git a/include/libnftnl/ b/include/libnftnl/
index 84f01b6..457ec95 100644
--- a/include/libnftnl/
+++ b/include/libnftnl/
@@ -7,4 +7,5 @@ pkginclude_HEADERS = batch.h \
set.h \
ruleset.h \
common.h \
+ udata.h \