diff options
| -rw-r--r-- | extensions/libipt_icmp.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/extensions/libipt_icmp.c b/extensions/libipt_icmp.c index 666e7daf..fb6050a8 100644 --- a/extensions/libipt_icmp.c +++ b/extensions/libipt_icmp.c @@ -249,6 +249,43 @@ static void icmp_save(const void *ip, const struct xt_entry_match *match) } } +static unsigned int type_xlate_print(struct xt_xlate *xl, unsigned int icmptype, + unsigned int code_min, + unsigned int code_max) +{ + unsigned int i; + + if (code_min != code_max) { + for (i = 0; i < ARRAY_SIZE(icmp_codes); ++i) + if (icmp_codes[i].type == icmptype && + icmp_codes[i].code_min == code_min && + icmp_codes[i].code_max == code_max) { + xt_xlate_add(xl, icmp_codes[i].name); + return 1; + } + } + + return 0; +} + +static int icmp_xlate(const void *ip, const struct xt_entry_match *match, + struct xt_xlate *xl, int numeric) +{ + const struct ipt_icmp *info = (struct ipt_icmp *)match->data; + + if (info->type != 0xFF) { + xt_xlate_add(xl, "icmp type%s ", + (info->invflags & IPT_ICMP_INV) ? " !=" : ""); + + if (!type_xlate_print(xl, info->type, info->code[0], + info->code[1])) + return 0; + + xt_xlate_add(xl, " "); + } + return 1; +} + static struct xtables_match icmp_mt_reg = { .name = "icmp", .version = XTABLES_VERSION, @@ -261,6 +298,7 @@ static struct xtables_match icmp_mt_reg = { .save = icmp_save, .x6_parse = icmp_parse, .x6_options = icmp_opts, + .xlate = icmp_xlate, }; void _init(void) |