EXPORT int execute_command(const char* rule, void *h){
int newargc;
char* table = "filter";
char** newargv = split_commandline(rule, &newargc);
int ret = do_command4(newargc, newargv,
&table, &h);
free(newargv);
return ret;
}
int
iptables_main(int argc, char *argv[])
{
int ret;
char *table = "filter";
struct xtc_handle *handle = NULL;
FILE *pfLockFile = NULL;
pfLockFile = ATP_UTIL_LockProc(IPTABLES_LOCK_FILE);
if (NULL == pfLockFile) {
printf("iptables get lock failed\n");
exit(-1);
}
ATP_UTIL_RegUnLock(pfLockFile);
iptables_globals.program_name = "iptables";
ret = xtables_init_all(&iptables_globals, NFPROTO_IPV4);
if (ret < 0) {
fprintf(stderr, "%s/%s Failed to initialize xtables\n",
iptables_globals.program_name,
iptables_globals.program_version);
exit(1);
}
#if defined(ALL_INCLUSIVE) || defined(NO_SHARED_LIBS)
init_extensions();
init_extensions4();
#endif
ret = do_command4(argc, argv, &table, &handle);
if (ret) {
ret = iptc_commit(handle);
iptc_free(handle);
}
if (!ret) {
if (errno == EINVAL) {
fprintf(stderr, "iptables: %s. "
"Run `dmesg' for more information.\n",
iptc_strerror(errno));
} else {
fprintf(stderr, "iptables: %s.\n",
iptc_strerror(errno));
}
if (errno == EAGAIN) {
exit(RESOURCE_PROBLEM);
}
}
exit(!ret);
}
static int
do_iptables(int argc, char* argv[])
{
char *table = "filter";
int ret = 0;
if(!find_table(argc, argv))
return 0;
#ifdef IP6T
ret = do_command6(argc, argv, &table, ¤t_table->handle, true);
if (!ret)
{
fprintf(stderr, "line %d: %s\n", current_line, ip6tc_strerror(errno));
}
else
{
if(!table || strcmp(table, current_table->name))
{
fprintf(stderr, "line %d: expected table %s, got %s\n",
current_line, current_table->name, table);
exit(1);
}
}
#else
ret = do_command4(argc, argv, &table, ¤t_table->handle, true);
if (!ret)
{
fprintf(stderr, "line %d: %s\n", current_line, iptc_strerror(errno));
}
else
{
if(!table || strcmp(table, current_table->name))
{
fprintf(stderr, "line %d: expected table %s, got %s\n",
current_line, current_table->name, table);
exit(1);
}
}
#endif
return ret;
}
int
iptables_restore_main(int argc, char *argv[])
{
struct xtc_handle *handle = NULL;
char buffer[10240];
int c;
char curtable[XT_TABLE_MAXNAMELEN + 1];
FILE *in;
int in_table = 0, testing = 0;
const char *tablename = NULL;
const struct xtc_ops *ops = &iptc_ops;
line = 0;
iptables_globals.program_name = "iptables-restore";
c = xtables_init_all(&iptables_globals, NFPROTO_IPV4);
if (c < 0) {
fprintf(stderr, "%s/%s Failed to initialize xtables\n",
iptables_globals.program_name,
iptables_globals.program_version);
exit(1);
}
#if defined(ALL_INCLUSIVE) || defined(NO_SHARED_LIBS)
init_extensions();
init_extensions4();
#endif
while ((c = getopt_long(argc, argv, "bcvthnM:T:", options, NULL)) != -1) {
switch (c) {
case 'b':
binary = 1;
break;
case 'c':
counters = 1;
break;
case 'v':
verbose = 1;
break;
case 't':
testing = 1;
break;
case 'h':
print_usage("iptables-restore",
IPTABLES_VERSION);
break;
case 'n':
noflush = 1;
break;
case 'M':
xtables_modprobe_program = optarg;
break;
case 'T':
tablename = optarg;
break;
}
}
if (optind == argc - 1) {
in = fopen(argv[optind], "re");
if (!in) {
fprintf(stderr, "Can't open %s: %s\n", argv[optind],
strerror(errno));
exit(1);
}
}
else if (optind < argc) {
fprintf(stderr, "Unknown arguments found on commandline\n");
exit(1);
}
else in = stdin;
/* Grab standard input. */
while (fgets(buffer, sizeof(buffer), in)) {
int ret = 0;
line++;
if (buffer[0] == '\n')
continue;
else if (buffer[0] == '#') {
if (verbose)
fputs(buffer, stdout);
continue;
} else if ((strcmp(buffer, "COMMIT\n") == 0) && (in_table)) {
if (!testing) {
DEBUGP("Calling commit\n");
ret = ops->commit(handle);
ops->free(handle);
handle = NULL;
} else {
DEBUGP("Not calling commit, testing\n");
ret = 1;
}
in_table = 0;
} else if ((buffer[0] == '*') && (!in_table)) {
/* New table */
char *table;
table = strtok(buffer+1, " \t\n");
DEBUGP("line %u, table '%s'\n", line, table);
if (!table) {
xtables_error(PARAMETER_PROBLEM,
"%s: line %u table name invalid\n",
xt_params->program_name, line);
exit(1);
}
strncpy(curtable, table, XT_TABLE_MAXNAMELEN);
curtable[XT_TABLE_MAXNAMELEN] = '\0';
if (tablename && (strcmp(tablename, table) != 0))
continue;
if (handle)
ops->free(handle);
handle = create_handle(table);
if (noflush == 0) {
DEBUGP("Cleaning all chains of table '%s'\n",
table);
for_each_chain4(flush_entries4, verbose, 1,
handle);
DEBUGP("Deleting all user-defined chains "
"of table '%s'\n", table);
for_each_chain4(delete_chain4, verbose, 0,
handle);
}
ret = 1;
in_table = 1;
} else if ((buffer[0] == ':') && (in_table)) {
/* New chain. */
char *policy, *chain;
chain = strtok(buffer+1, " \t\n");
DEBUGP("line %u, chain '%s'\n", line, chain);
if (!chain) {
xtables_error(PARAMETER_PROBLEM,
"%s: line %u chain name invalid\n",
xt_params->program_name, line);
exit(1);
}
if (strlen(chain) >= XT_EXTENSION_MAXNAMELEN)
xtables_error(PARAMETER_PROBLEM,
"Invalid chain name `%s' "
"(%u chars max)",
chain, XT_EXTENSION_MAXNAMELEN - 1);
if (ops->builtin(chain, handle) <= 0) {
if (noflush && ops->is_chain(chain, handle)) {
DEBUGP("Flushing existing user defined chain '%s'\n", chain);
if (!ops->flush_entries(chain, handle))
xtables_error(PARAMETER_PROBLEM,
"error flushing chain "
"'%s':%s\n", chain,
strerror(errno));
} else {
DEBUGP("Creating new chain '%s'\n", chain);
if (!ops->create_chain(chain, handle))
xtables_error(PARAMETER_PROBLEM,
"error creating chain "
"'%s':%s\n", chain,
strerror(errno));
}
}
policy = strtok(NULL, " \t\n");
DEBUGP("line %u, policy '%s'\n", line, policy);
if (!policy) {
xtables_error(PARAMETER_PROBLEM,
"%s: line %u policy invalid\n",
xt_params->program_name, line);
exit(1);
}
if (strcmp(policy, "-") != 0) {
struct xt_counters count;
if (counters) {
char *ctrs;
ctrs = strtok(NULL, " \t\n");
if (!ctrs || !parse_counters(ctrs, &count))
xtables_error(PARAMETER_PROBLEM,
"invalid policy counters "
"for chain '%s'\n", chain);
} else {
memset(&count, 0, sizeof(count));
}
DEBUGP("Setting policy of chain %s to %s\n",
chain, policy);
if (!ops->set_policy(chain, policy, &count,
handle))
xtables_error(OTHER_PROBLEM,
"Can't set policy `%s'"
" on `%s' line %u: %s\n",
policy, chain, line,
ops->strerror(errno));
}
ret = 1;
} else if (in_table) {
int a;
char *ptr = buffer;
char *pcnt = NULL;
char *bcnt = NULL;
char *parsestart;
/* the parser */
char *curchar;
int quote_open, escaped;
size_t param_len;
char param_buffer[1024];
/* reset the newargv */
newargc = 0;
if (buffer[0] == '[') {
/* we have counters in our input */
ptr = strchr(buffer, ']');
if (!ptr)
xtables_error(PARAMETER_PROBLEM,
"Bad line %u: need ]\n",
line);
pcnt = strtok(buffer+1, ":");
if (!pcnt)
xtables_error(PARAMETER_PROBLEM,
"Bad line %u: need :\n",
line);
bcnt = strtok(NULL, "]");
if (!bcnt)
xtables_error(PARAMETER_PROBLEM,
"Bad line %u: need ]\n",
line);
/* start command parsing after counter */
parsestart = ptr + 1;
} else {
/* start command parsing at start of line */
parsestart = buffer;
}
add_argv(argv[0]);
add_argv("-t");
add_argv(curtable);
if (counters && pcnt && bcnt) {
add_argv("--set-counters");
add_argv((char *) pcnt);
add_argv((char *) bcnt);
}
/* After fighting with strtok enough, here's now
* a 'real' parser. According to Rusty I'm now no
* longer a real hacker, but I can live with that */
quote_open = 0;
escaped = 0;
param_len = 0;
for (curchar = parsestart; *curchar; curchar++) {
if (quote_open) {
if (escaped) {
param_buffer[param_len++] = *curchar;
escaped = 0;
continue;
} else if (*curchar == '\\') {
escaped = 1;
continue;
} else if (*curchar == '"') {
quote_open = 0;
*curchar = ' ';
} else {
param_buffer[param_len++] = *curchar;
continue;
}
} else {
if (*curchar == '"') {
quote_open = 1;
continue;
}
}
if (*curchar == ' '
|| *curchar == '\t'
|| * curchar == '\n') {
if (!param_len) {
/* two spaces? */
continue;
}
param_buffer[param_len] = '\0';
/* check if table name specified */
if (!strncmp(param_buffer, "-t", 2)
|| !strncmp(param_buffer, "--table", 8)) {
xtables_error(PARAMETER_PROBLEM,
"Line %u seems to have a "
"-t table option.\n", line);
exit(1);
}
add_argv(param_buffer);
param_len = 0;
} else {
/* regular character, copy to buffer */
param_buffer[param_len++] = *curchar;
if (param_len >= sizeof(param_buffer))
xtables_error(PARAMETER_PROBLEM,
"Parameter too long!");
}
}
DEBUGP("calling do_command4(%u, argv, &%s, handle):\n",
newargc, curtable);
for (a = 0; a < newargc; a++)
DEBUGP("argv[%u]: %s\n", a, newargv[a]);
ret = do_command4(newargc, newargv,
&newargv[2], &handle);
free_argv();
fflush(stdout);
}
if (tablename && (strcmp(tablename, curtable) != 0))
continue;
if (!ret) {
fprintf(stderr, "%s: line %u failed\n",
xt_params->program_name, line);
exit(1);
}
}
if (in_table) {
fprintf(stderr, "%s: COMMIT expected at line %u\n",
xt_params->program_name, line + 1);
exit(1);
}
fclose(in);
return 0;
}
