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-rw-r--r--extensions/libxt_state.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/extensions/libxt_state.c b/extensions/libxt_state.c
deleted file mode 100644
index eff444c8..00000000
--- a/extensions/libxt_state.c
+++ /dev/null
@@ -1,137 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <xtables.h>
-#include <linux/netfilter/nf_conntrack_common.h>
-#include <linux/netfilter/xt_state.h>
-
-#ifndef XT_STATE_UNTRACKED
-#define XT_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 1))
-#endif
-
-enum {
- O_STATE = 0,
-};
-
-static void
-state_help(void)
-{
- printf(
-"state match options:\n"
-" [!] --state [INVALID|ESTABLISHED|NEW|RELATED|UNTRACKED][,...]\n"
-" State(s) to match\n");
-}
-
-static const struct xt_option_entry state_opts[] = {
- {.name = "state", .id = O_STATE, .type = XTTYPE_STRING,
- .flags = XTOPT_MAND | XTOPT_INVERT},
- XTOPT_TABLEEND,
-};
-
-static int
-state_parse_state(const char *state, size_t len, struct xt_state_info *sinfo)
-{
- if (strncasecmp(state, "INVALID", len) == 0)
- sinfo->statemask |= XT_STATE_INVALID;
- else if (strncasecmp(state, "NEW", len) == 0)
- sinfo->statemask |= XT_STATE_BIT(IP_CT_NEW);
- else if (strncasecmp(state, "ESTABLISHED", len) == 0)
- sinfo->statemask |= XT_STATE_BIT(IP_CT_ESTABLISHED);
- else if (strncasecmp(state, "RELATED", len) == 0)
- sinfo->statemask |= XT_STATE_BIT(IP_CT_RELATED);
- else if (strncasecmp(state, "UNTRACKED", len) == 0)
- sinfo->statemask |= XT_STATE_UNTRACKED;
- else
- return 0;
- return 1;
-}
-
-static void
-state_parse_states(const char *arg, struct xt_state_info *sinfo)
-{
- const char *comma;
-
- while ((comma = strchr(arg, ',')) != NULL) {
- if (comma == arg || !state_parse_state(arg, comma-arg, sinfo))
- xtables_error(PARAMETER_PROBLEM, "Bad state \"%s\"", arg);
- arg = comma+1;
- }
- if (!*arg)
- xtables_error(PARAMETER_PROBLEM, "\"--state\" requires a list of "
- "states with no spaces, e.g. "
- "ESTABLISHED,RELATED");
- if (strlen(arg) == 0 || !state_parse_state(arg, strlen(arg), sinfo))
- xtables_error(PARAMETER_PROBLEM, "Bad state \"%s\"", arg);
-}
-
-static void state_parse(struct xt_option_call *cb)
-{
- struct xt_state_info *sinfo = cb->data;
-
- xtables_option_parse(cb);
- state_parse_states(cb->arg, sinfo);
- if (cb->invert)
- sinfo->statemask = ~sinfo->statemask;
-}
-
-static void state_print_state(unsigned int statemask)
-{
- const char *sep = "";
-
- if (statemask & XT_STATE_INVALID) {
- printf("%sINVALID", sep);
- sep = ",";
- }
- if (statemask & XT_STATE_BIT(IP_CT_NEW)) {
- printf("%sNEW", sep);
- sep = ",";
- }
- if (statemask & XT_STATE_BIT(IP_CT_RELATED)) {
- printf("%sRELATED", sep);
- sep = ",";
- }
- if (statemask & XT_STATE_BIT(IP_CT_ESTABLISHED)) {
- printf("%sESTABLISHED", sep);
- sep = ",";
- }
- if (statemask & XT_STATE_UNTRACKED) {
- printf("%sUNTRACKED", sep);
- sep = ",";
- }
-}
-
-static void
-state_print(const void *ip,
- const struct xt_entry_match *match,
- int numeric)
-{
- const struct xt_state_info *sinfo = (const void *)match->data;
-
- printf(" state ");
- state_print_state(sinfo->statemask);
-}
-
-static void state_save(const void *ip, const struct xt_entry_match *match)
-{
- const struct xt_state_info *sinfo = (const void *)match->data;
-
- printf(" --state ");
- state_print_state(sinfo->statemask);
-}
-
-static struct xtables_match state_match = {
- .family = NFPROTO_UNSPEC,
- .name = "state",
- .version = XTABLES_VERSION,
- .size = XT_ALIGN(sizeof(struct xt_state_info)),
- .userspacesize = XT_ALIGN(sizeof(struct xt_state_info)),
- .help = state_help,
- .print = state_print,
- .save = state_save,
- .x6_parse = state_parse,
- .x6_options = state_opts,
-};
-
-void _init(void)
-{
- xtables_register_match(&state_match);
-}