diff options
Diffstat (limited to 'src/expr/target.c')
-rw-r--r-- | src/expr/target.c | 63 |
1 files changed, 62 insertions, 1 deletions
diff --git a/src/expr/target.c b/src/expr/target.c index d3de8e8..6652c47 100644 --- a/src/expr/target.c +++ b/src/expr/target.c @@ -15,7 +15,7 @@ #include <stdint.h> #include <string.h> /* for memcpy */ #include <arpa/inet.h> - +#include <errno.h> #include <libmnl/libmnl.h> #include <linux/netfilter/nf_tables.h> @@ -184,6 +184,66 @@ static int nft_rule_expr_target_parse(struct nft_rule_expr *e, struct nlattr *at return 0; } +static int +nft_rule_expr_target_xml_parse(struct nft_rule_expr *e, char *xml) +{ +#ifdef XML_PARSING + struct nft_expr_target *tg = (struct nft_expr_target *)e->data; + mxml_node_t *tree = NULL; + mxml_node_t *node = NULL; + uint64_t tmp; + char *endptr; + + /* load the tree */ + tree = mxmlLoadString(NULL, xml, MXML_OPAQUE_CALLBACK); + if (tree == NULL) + return -1; + + if (mxmlElementGetAttr(tree, "type") == NULL) { + mxmlDelete(tree); + return -1; + } + + if (strcmp("target", mxmlElementGetAttr(tree, "type")) != 0) { + mxmlDelete(tree); + return -1; + } + + /* Get and set <name>. Optional */ + node = mxmlFindElement(tree, tree, "name", NULL, NULL, + MXML_DESCEND_FIRST); + if (node != NULL) { + memcpy(tg->name, node->child->value.opaque, + XT_EXTENSION_MAXNAMELEN); + tg->name[XT_EXTENSION_MAXNAMELEN-1] = '\0'; + e->flags |= (1 << NFT_EXPR_TG_NAME); + } + + /* Get and set <rev>. Optional */ + node = mxmlFindElement(tree, tree, "rev", NULL, NULL, + MXML_DESCEND); + if (node == NULL) { + errno = 0; + tmp = strtoull(node->child->value.opaque, &endptr, 10); + if (tmp > UINT32_MAX || tmp < 0 || *endptr) { + mxmlDelete(tree); + return -1; + } + + tg->rev = (uint32_t)tmp; + e->flags |= (1 << NFT_EXPR_TG_REV); + } + + /* tg->info is ignored until other solution is reached */ + + mxmlDelete(tree); + return 0; +#else + errno = EOPNOTSUPP; + return -1; +#endif +} + static int nft_rule_exp_target_snprintf_xml(char *buf, size_t len, struct nft_expr_target *tg) @@ -235,4 +295,5 @@ struct expr_ops expr_ops_target = { .parse = nft_rule_expr_target_parse, .build = nft_rule_expr_target_build, .snprintf = nft_rule_expr_target_snprintf, + .xml_parse = nft_rule_expr_target_xml_parse, }; |