diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-02-20 16:18:03 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-03-02 11:08:49 +0100 |
commit | 6d085b22a8b5165406b5727ccf21a91ac5b97136 (patch) | |
tree | 6f343e53b5a6da34ee05a665b8bfd7c84605534f /src/rule.c | |
parent | 4722cfeed34c2333989aa88d9e0b5e4ed89f3280 (diff) |
table: support for the table owner flag
Add new flag to allow userspace process to own tables: Tables that have
an owner can only be updated/destroyed by the owner. The table is
destroyed either if the owner process calls nft_ctx_free() or owner
process is terminated (implicit table release).
The ruleset listing includes the program name that owns the table:
nft> list ruleset
table ip x { # progname nft
flags owner
chain y {
type filter hook input priority filter; policy accept;
counter packets 1 bytes 309
}
}
Original code to pretty print the netlink portID to program name has
been extracted from the conntrack userspace utility.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/rule.c')
-rw-r--r-- | src/rule.c | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -25,6 +25,7 @@ #include <misspell.h> #include <json.h> #include <cache.h> +#include <owner.h> #include <libnftnl/common.h> #include <libnftnl/ruleset.h> @@ -1407,6 +1408,7 @@ struct table *table_lookup_fuzzy(const struct handle *h, static const char *table_flags_name[TABLE_FLAGS_MAX] = { "dormant", + "owner", }; const char *table_flag_name(uint32_t flag) @@ -1451,8 +1453,13 @@ static void table_print(const struct table *table, struct output_ctx *octx) const char *family = family2str(table->handle.family); nft_print(octx, "table %s %s {", family, table->handle.table.name); + if (nft_output_handle(octx) || table->flags & TABLE_F_OWNER) + nft_print(octx, " #"); if (nft_output_handle(octx)) - nft_print(octx, " # handle %" PRIu64, table->handle.handle.id); + nft_print(octx, " handle %" PRIu64, table->handle.handle.id); + if (table->flags & TABLE_F_OWNER) + nft_print(octx, " progname %s", get_progname(table->owner)); + nft_print(octx, "\n"); table_print_flags(table, &delim, octx); |