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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-09 13:04:34 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-09 13:04:34 +0000 |
| commit | 371c8a8bca2b6862226bc79c13d143e07c1d8fc3 (patch) | |
| tree | 06c7dc8826596690422e79d5bde2f46c90492de3 /include/udata.h | |
| parent | Initial commit. (diff) | |
| download | libnftnl-upstream/1.2.6.tar.xz libnftnl-upstream/1.2.6.zip | |
Adding upstream version 1.2.6.upstream/1.2.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/udata.h')
| -rw-r--r-- | include/udata.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/udata.h b/include/udata.h new file mode 100644 index 0000000..407a3b9 --- /dev/null +++ b/include/udata.h @@ -0,0 +1,40 @@ +#ifndef _LIBNFTNL_UDATA_INTERNAL_H_ +#define _LIBNFTNL_UDATA_INTERNAL_H_ + +#include <stdint.h> +#include <stddef.h> + +/* + * TLV structures: + * nftnl_udata + * <-------- HEADER --------> <------ PAYLOAD ------> + * +------------+-------------+- - - - - - - - - - - -+ + * | type | len | value | + * | (1 byte) | (1 byte) | | + * +--------------------------+- - - - - - - - - - - -+ + * <-- sizeof(nftnl_udata) -> <-- nftnl_udata->len --> + */ +struct nftnl_udata { + uint8_t type; + uint8_t len; + unsigned char value[]; +} __attribute__((__packed__)); + +/* + * +---------------------------------++ + * | data[] || + * | || || + * | \/ \/ + * +-------+-------+-------+-------+ ... +-------+- - - - - - -+ + * | size | end | TLV | TLV | | TLV | Empty | + * +-------+-------+-------+-------+ ... +-------+- - - - - - -+ + * |<---- nftnl_udata_len() ---->| + * |<----------- nftnl_udata_size() ---------->| + */ +struct nftnl_udata_buf { + uint32_t size; + char *end; + char data[]; +}; + +#endif /* _LIBNFTNL_UDATA_INTERNAL_H_ */ |