command *p_st_empty(parser_info *pinfo)
{
pinfo->request_for_lex = 1;
pinfo->state = P_ST_START;
pinfo->tmp_cmd.type = CMD_EMPTY;
return new_cmd(pinfo);
}
command *p_st_expect_optional_str(parser_info *pinfo)
{
command *cmd = NULL;
switch (pinfo->cur_lex->type) {
case LEX_WORD:
pinfo->tmp_cmd.value = pinfo->cur_lex->value;
pinfo->cur_lex_data_used = 1;
pinfo->request_for_lex = 1;
pinfo->state = P_ST_PROCESS_ARG2;
break;
case LEX_EOLN:
pinfo->request_for_lex = 1;
pinfo->state = P_ST_START;
/* pinfo->tmp_cmd.type already defined. */
pinfo->tmp_cmd.value.str = NULL;
cmd = new_cmd(pinfo);
break;
case LEX_PROTOCOL_PARSE_ERROR:
pinfo->state = P_ST_PROTOCOL_PARSE_ERROR;
break;
default:
pinfo->state = P_ST_WRONG;
}
return cmd;
}
command *p_st_expect_eoln(parser_info *pinfo)
{
command *cmd = NULL;
switch (pinfo->cur_lex->type) {
case LEX_EOLN:
pinfo->state = P_ST_START;
pinfo->request_for_lex = 1;
/* pinfo->tmp_cmd already defined
* (only type or both type and value). */
cmd = new_cmd(pinfo);
break;
case LEX_PROTOCOL_PARSE_ERROR:
pinfo->state = P_ST_PROTOCOL_PARSE_ERROR;
break;
default:
pinfo->state = P_ST_WRONG;
}
return cmd;
}
command *p_st_protocol_parse_error(parser_info *pinfo)
{
pinfo->tmp_cmd.type = CMD_PROTOCOL_PARSE_ERROR;
return new_cmd(pinfo);
}
command *p_st_wrong(parser_info *pinfo)
{
pinfo->state = P_ST_SKIP;
pinfo->tmp_cmd.type = CMD_WRONG;
return new_cmd(pinfo);
}
int
parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
{
int argc = *argc_p;
char **argv = *argv_p;
struct rtattr *tail, *tail2;
char k[16];
int ok = 0;
int eap = 0;
int ret = 0;
int prio = 0;
if (argc <= 0)
return -1;
tail = tail2 = NLMSG_TAIL(n);
addattr_l(n, MAX_MSG, tca_id, NULL, 0);
while (argc > 0) {
memset(k, 0, sizeof (k));
if (strcmp(*argv, "action") == 0 ) {
argc--;
argv++;
eap = 1;
#ifdef CONFIG_GACT
if (!gact_ld) {
get_action_kind("gact");
}
#endif
continue;
} else if (strcmp(*argv, "help") == 0) {
return -1;
} else if (new_cmd(argv)) {
goto done0;
} else {
struct action_util *a = NULL;
strncpy(k, *argv, sizeof (k) - 1);
eap = 0;
if (argc > 0 ) {
a = get_action_kind(k);
} else {
done0:
if (ok)
break;
else
goto done;
}
if (NULL == a) {
goto bad_val;
}
tail = NLMSG_TAIL(n);
addattr_l(n, MAX_MSG, ++prio, NULL, 0);
addattr_l(n, MAX_MSG, TCA_ACT_KIND, k, strlen(k) + 1);
ret = a->parse_aopt(a,&argc, &argv, TCA_ACT_OPTIONS, n);
if (ret < 0) {
fprintf(stderr,"bad action parsing\n");
goto bad_val;
}
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
ok++;
}
}
if (eap > 0) {
fprintf(stderr,"bad action empty %d\n",eap);
goto bad_val;
}
tail2->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail2;
done:
*argc_p = argc;
*argv_p = argv;
return 0;
bad_val:
fprintf(stderr, "parse_action: bad value (%d:%s)!\n",argc,*argv);
return -1;
}