diff options
Diffstat (limited to 'src/netlink.c')
| -rw-r--r-- | src/netlink.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/netlink.c b/src/netlink.c index 0db5e175..a107f492 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -537,10 +537,32 @@ struct chain *netlink_delinearize_chain(struct netlink_ctx *ctx, return chain; } +static int table_parse_udata_cb(const struct nftnl_udata *attr, void *data) +{ + unsigned char *value = nftnl_udata_get(attr); + const struct nftnl_udata **tb = data; + uint8_t type = nftnl_udata_type(attr); + uint8_t len = nftnl_udata_len(attr); + + switch (type) { + case NFTNL_UDATA_TABLE_COMMENT: + if (value[len - 1] != '\0') + return -1; + break; + default: + return 0; + } + tb[type] = attr; + return 0; +} + struct table *netlink_delinearize_table(struct netlink_ctx *ctx, const struct nftnl_table *nlt) { + const struct nftnl_udata *ud[NFTNL_UDATA_TABLE_MAX + 1] = {}; struct table *table; + const char *udata; + uint32_t ulen; table = table_alloc(); table->handle.family = nftnl_table_get_u32(nlt, NFTNL_TABLE_FAMILY); @@ -548,6 +570,16 @@ struct table *netlink_delinearize_table(struct netlink_ctx *ctx, table->flags = nftnl_table_get_u32(nlt, NFTNL_TABLE_FLAGS); table->handle.handle.id = nftnl_table_get_u64(nlt, NFTNL_TABLE_HANDLE); + if (nftnl_table_is_set(nlt, NFTNL_TABLE_USERDATA)) { + udata = nftnl_table_get_data(nlt, NFTNL_TABLE_USERDATA, &ulen); + if (nftnl_udata_parse(udata, ulen, table_parse_udata_cb, ud) < 0) { + netlink_io_error(ctx, NULL, "Cannot parse userdata"); + return NULL; + } + if (ud[NFTNL_UDATA_TABLE_COMMENT]) + table->comment = xstrdup(nftnl_udata_get(ud[NFTNL_UDATA_TABLE_COMMENT])); + } + return table; } |