diff options
author | Phil Sutter <phil@nwl.cc> | 2019-10-30 21:45:39 +0100 |
---|---|---|
committer | Phil Sutter <phil@nwl.cc> | 2019-11-07 12:46:16 +0100 |
commit | 332325e3c3fab4c25bb5f387f9663205f63748dc (patch) | |
tree | b9e616a69a3b87829c4f6531a6677119d9af6275 /src/rule.c | |
parent | 856c78d4fdc73ac746ef1473f08d78cf2ebcbc4c (diff) |
libnftables: Store top_scope in struct nft_ctx
Allow for interactive sessions to make use of defines. Since parser is
initialized for each line, top scope defines didn't persist although
they are actually useful for stuff like:
| # nft -i
| define goodports = { 22, 23, 80, 443 }
| add rule inet t c tcp dport $goodports accept
| add rule inet t c tcp sport $goodports accept
While being at it, introduce scope_alloc() and scope_free().
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/rule.c')
-rw-r--r-- | src/rule.c | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -645,6 +645,15 @@ struct rule *rule_lookup_by_index(const struct chain *chain, uint64_t index) return NULL; } +struct scope *scope_alloc(void) +{ + struct scope *scope = xzalloc(sizeof(struct scope)); + + init_list_head(&scope->symbols); + + return scope; +} + struct scope *scope_init(struct scope *scope, const struct scope *parent) { scope->parent = parent; @@ -664,6 +673,12 @@ void scope_release(const struct scope *scope) } } +void scope_free(struct scope *scope) +{ + scope_release(scope); + xfree(scope); +} + void symbol_bind(struct scope *scope, const char *identifier, struct expr *expr) { struct symbol *sym; |