diff options
Diffstat (limited to 'src/expr/cmp.c')
-rw-r--r-- | src/expr/cmp.c | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/src/expr/cmp.c b/src/expr/cmp.c index 0849c49..429f024 100644 --- a/src/expr/cmp.c +++ b/src/expr/cmp.c @@ -19,6 +19,7 @@ #include <libmnl/libmnl.h> #include <linux/netfilter/nf_tables.h> #include <libnftables/expr.h> +#include <libnftables/rule.h> #include "expr_ops.h" #include "data_reg.h" @@ -166,10 +167,29 @@ static char *expr_cmp_str[] = { }; static int -nft_rule_expr_cmp_snprintf(char *buf, size_t size, uint32_t type, - uint32_t flags, struct nft_rule_expr *e) +nft_rule_expr_cmp_snprintf_xml(char *buf, size_t size, struct nft_expr_cmp *cmp) +{ + int len = size, offset = 0, ret, i; + + ret = snprintf(buf, len, "\t\t<sreg>%u</sreg> <op>%s</op> <data>", + cmp->sreg, expr_cmp_str[cmp->op]); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + + for (i=0; i<cmp->data.len/sizeof(uint32_t); i++) { + ret = snprintf(buf+offset, len, "%.8x ", cmp->data.val[i]); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + } + + ret = snprintf(buf+offset, len, "</data> "); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + + return offset; +} + +static int +nft_rule_expr_cmp_snprintf_default(char *buf, size_t size, + struct nft_expr_cmp *cmp) { - struct nft_expr_cmp *cmp = (struct nft_expr_cmp *)e->data; int len = size, offset = 0, ret, i; ret = snprintf(buf, len, "sreg=%u op=%s data=", @@ -183,6 +203,22 @@ nft_rule_expr_cmp_snprintf(char *buf, size_t size, uint32_t type, return offset; } +static int +nft_rule_expr_cmp_snprintf(char *buf, size_t size, uint32_t type, + uint32_t flags, struct nft_rule_expr *e) +{ + struct nft_expr_cmp *cmp = (struct nft_expr_cmp *)e->data; + switch(type) { + case NFT_RULE_O_XML: + return nft_rule_expr_cmp_snprintf_xml(buf, size, cmp); + case NFT_RULE_O_DEFAULT: + return nft_rule_expr_cmp_snprintf_default(buf, size, cmp); + default: + break; + } + return -1; +} + struct expr_ops expr_ops_cmp = { .name = "cmp", .alloc_len = sizeof(struct nft_expr_cmp), |