/*
* $Id$
*
* Copyright (C) 2007-2008 1&1 Internet AG
*
* This file is part of SIP-router, a free SIP server.
*
* SIP-router is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* SIP-router is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* \file cr_fifo.c
* \brief Functions for modifying routing data via fifo commands.
* \ingroup carrierroute
* - Module; \ref carrierroute
*/
#include <ctype.h>
#include <stdlib.h>
#include "../../mem/mem.h"
#include "../../mem/shm_mem.h"
#include "../../str.h"
#include "../../ut.h"
#include "cr_fifo.h"
#include "carrierroute.h"
#include "cr_config.h"
#include "cr_carrier.h"
#include "cr_domain.h"
#include "cr_rule.h"
/**
* Defines the option set for the different fifo commands
* Every line is for a command,
* The first field defines the required options, the second field defines the
* optional options and the third field defines the invalid options.
*/
static unsigned int opt_settings[5][3] = {{O_PREFIX|O_DOMAIN|O_HOST|O_PROB, O_R_PREFIX|O_R_SUFFIX|O_H_INDEX, O_NEW_TARGET},
{O_HOST|O_DOMAIN|O_PREFIX, O_PROB, O_R_PREFIX|O_R_SUFFIX|O_NEW_TARGET|O_H_INDEX},
{O_HOST|O_NEW_TARGET, O_PREFIX|O_DOMAIN|O_PROB, O_R_PREFIX|O_R_SUFFIX|O_H_INDEX},
{O_HOST|O_DOMAIN|O_PREFIX, O_PROB|O_NEW_TARGET, O_R_PREFIX|O_R_SUFFIX|O_H_INDEX},
{O_HOST|O_DOMAIN|O_PREFIX, O_PROB, O_R_PREFIX|O_R_SUFFIX|O_NEW_TARGET|O_H_INDEX}};
int fifo_err;
static int updated;
static int dump_tree_recursor (struct mi_node* msg, struct dtrie_node_t *node, char *prefix);
static struct mi_root* print_replace_help(void);
static int get_fifo_opts(str * buf, fifo_opt_t * opts, unsigned int opt_set[]);
static int update_route_data(fifo_opt_t * opts);
static int update_route_data_recursor(struct dtrie_node_t *node, str * act_domain, fifo_opt_t * opts);
static struct mi_root* print_fifo_err(void);
static int str_toklen(str * str, const char * delims)
{
int len;
if ((str==NULL) || (str->s==NULL)) {
/* No more tokens */
return -1;
}
len=0;
while (len<str->len) {
if (strchr(delims,str->s[len])!=NULL) {
return len;
}
len++;
}
return len;
}
/**
* reloads the routing data
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 500 on failure
*/
struct mi_root* reload_fifo (struct mi_root* cmd_tree, void *param) {
struct mi_root * tmp = NULL;
if (reload_route_data () == -1) {
tmp = init_mi_tree(500, "failed to re-built tree, see log", 33);
}
else {
tmp = init_mi_tree(200, MI_OK_S, MI_OK_LEN);
}
return tmp;
}
/**
* prints the routing data
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 400 or 500 on failure
*/
struct mi_root* dump_fifo (struct mi_root* cmd_tree, void *param) {
struct route_data_t * rd;
str *tmp_str;
str empty_str = str_init("<empty>");
if((rd = get_data ()) == NULL) {
LM_ERR("error during retrieve data\n");
return init_mi_tree(500, "error during command processing", 31);
}
struct mi_root* rpl_tree;
struct mi_node* node = NULL;
rpl_tree = init_mi_tree( 200, MI_OK_S, MI_OK_LEN);
if(rpl_tree == NULL)
goto error2;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "Printing routing information:");
if(node == NULL)
goto error;
LM_DBG("start processing of data\n");
int i, j;
for (i = 0; i < rd->carrier_num; i++) {
if (rd->carriers[i]) {
tmp_str = (rd->carriers[i] ? rd->carriers[i]->name : &empty_str);
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "Printing tree for carrier '%.*s' (%i)\n", tmp_str->len, tmp_str->s, rd->carriers[i] ? rd->carriers[i]->id : 0);
if(node == NULL)
goto error;
for (j=0; j<rd->carriers[i]->domain_num; j++) {
if (rd->carriers[i]->domains[j] && rd->carriers[i]->domains[j]->tree) {
tmp_str = (rd->carriers[i]->domains[j] ? rd->carriers[i]->domains[j]->name : &empty_str);
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "Printing tree for domain '%.*s' (%i)\n", tmp_str->len, tmp_str->s, rd->carriers[i]->domains[j]->id);
if(node == NULL)
goto error;
if (dump_tree_recursor (&rpl_tree->node, rd->carriers[i]->domains[j]->tree, "") < 0)
goto error;
}
}
}
}
release_data (rd);
return rpl_tree;
error:
free_mi_tree(rpl_tree);
error2:
release_data (rd);
return 0;
}
/**
* replaces the host specified by parameters in the
* fifo command, can be used only in file mode
* expect one mi node that contains the command
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 400 or 500 on failure
*/
struct mi_root* replace_host (struct mi_root* cmd_tree, void *param) {
struct mi_node *node = NULL;
int ret;
fifo_opt_t options;
if(mode != CARRIERROUTE_MODE_FILE) {
return init_mi_tree(400, "Not running in config file mode, cannot modify route from command line", 70);
}
node = cmd_tree->node.kids;
if (node==NULL || node->next!=NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
/* look for command */
if (node->value.s==NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
if((ret = get_fifo_opts(&node->value, &options, opt_settings[OPT_REPLACE])) < 0) {
return print_fifo_err();
}
options.status = 1;
options.cmd = OPT_REPLACE;
if(update_route_data(&options) < 0) {
return init_mi_tree(500, "failed to update route data, see log", 37);
}
return init_mi_tree(200, MI_OK_S, MI_OK_LEN);
}
/**
* deactivates the host given in the command line options,
* can be used only in file mode
* expect one mi node that contains the command
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 400 or 500 on failure
*/
struct mi_root* deactivate_host (struct mi_root* cmd_tree, void *param) {
struct mi_node *node = NULL;
int ret;
fifo_opt_t options;
if(mode != CARRIERROUTE_MODE_FILE) {
return init_mi_tree(400, "Not running in config file mode, cannot modify route from command line", 70);
}
node = cmd_tree->node.kids;
if (node==NULL || node->next!=NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
/* look for command */
if (node->value.s==NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
if((ret = get_fifo_opts(&node->value, &options, opt_settings[OPT_DEACTIVATE])) < 0) {
return print_fifo_err();
}
options.status = 0;
options.cmd = OPT_DEACTIVATE;
if(update_route_data(&options) < 0) {
return init_mi_tree(500, "failed to update route data, see log", 37);
}
return init_mi_tree(200, MI_OK_S, MI_OK_LEN);
}
/**
* activates the host given in the command line options,
* can be used only in file mode
* expect one mi node that contains the command
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 400 or 500 on failure
*/
struct mi_root* activate_host (struct mi_root* cmd_tree, void *param) {
struct mi_node *node = NULL;
int ret;
fifo_opt_t options;
if(mode != CARRIERROUTE_MODE_FILE) {
return init_mi_tree(400, "Not running in config file mode, cannot modify route from command line", 70);
}
node = cmd_tree->node.kids;
if (node==NULL || node->next!=NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
/* look for command */
if (node->value.s==NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
if((ret = get_fifo_opts(&node->value, &options, opt_settings[OPT_ACTIVATE])) < 0) {
return print_fifo_err();
}
options.status = 1;
options.cmd = OPT_ACTIVATE;
if(update_route_data(&options) < 0) {
return init_mi_tree(500, "failed to update route data, see log", 37);
}
return init_mi_tree(200, MI_OK_S, MI_OK_LEN);
}
/**
* adds the host specified by the command line args,
* can be used only in file mode
* expect one mi node that contains the command
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 400 or 500 on failure
*/
struct mi_root* add_host (struct mi_root* cmd_tree, void *param) {
struct mi_node *node = NULL;
int ret;
fifo_opt_t options;
if(mode != CARRIERROUTE_MODE_FILE) {
return init_mi_tree(400, "Not running in config file mode, cannot modify route from command line", 70);
}
node = cmd_tree->node.kids;
if (node==NULL || node->next!=NULL || node->value.s==NULL) {
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
}
if((ret = get_fifo_opts(&node->value, &options, opt_settings[OPT_ADD])) < 0) {
return print_fifo_err();
}
options.status = 1;
options.cmd = OPT_ADD;
if(update_route_data(&options) < 0) {
return init_mi_tree(500, "failed to update route data, see log", 37);
}
return init_mi_tree(200, MI_OK_S, MI_OK_LEN);
}
/**
* deletes the host specified by the command line args,
* can be used only in file mode
* expect one mi node that contains the command
*
* @param cmd_tree the MI command tree
* @param param the parameter
*
* @return code 200 on success, code 400 or 500 on failure
*/
struct mi_root* delete_host (struct mi_root* cmd_tree, void * param) {
struct mi_node *node = NULL;
int ret;
fifo_opt_t options;
if(mode != CARRIERROUTE_MODE_FILE) {
return init_mi_tree(400, "Not running in config file mode, cannot modify route from command line", 70);
}
node = cmd_tree->node.kids;
if (node==NULL || node->next!=NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
/* look for command */
if (node->value.s==NULL)
return init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
if((ret = get_fifo_opts(&node->value, &options, opt_settings[OPT_REMOVE])) < 0) {
return print_fifo_err();
}
options.cmd = OPT_REMOVE;
if(update_route_data(&options) < 0) {
return init_mi_tree(500, "failed to update route data, see log", 37);
}
return init_mi_tree(200, MI_OK_S, MI_OK_LEN);
}
/**
* does the work for dump_fifo, traverses the routing tree
* and prints route rules if present.
*
* @param msg MI node that is used to append the informations
* @param node pointer to the routing tree node
* @param prefix carries the current scan prefix
*
* @return 0 for success, negative result for error
*/
static int dump_tree_recursor (struct mi_node* msg, struct dtrie_node_t *node, char *prefix) {
char s[256];
char *p;
int i;
struct route_flags *rf;
struct route_rule *rr;
struct route_rule_p_list * rl;
double prob;
struct mi_node* tmp_node = NULL;
strcpy (s, prefix);
p = s + strlen (s);
p[1] = '\0';
for (i = 0; i < cr_match_mode; ++i) {
if (node->child[i] != NULL) {
*p = i + '0';
/* if there is a problem in processing the child nodes .. return an error */
if(dump_tree_recursor (msg->next, node->child[i], s) < 0)
return -1;
}
}
*p = '\0';
for (rf = (struct route_flags *)(node->data); rf != NULL; rf = rf->next) {
for (rr = rf->rule_list; rr != NULL; rr = rr->next) {
if(rf->dice_max){
prob = (double)(rr->prob * DICE_MAX)/(double)rf->dice_max;
} else {
prob = rr->prob;
}
tmp_node = addf_mi_node_child(msg->next, 0, 0, 0, "%10s: %0.3f %%, '%.*s': %s, '%i', '%.*s', '%.*s', '%.*s'\n",
strlen(prefix) > 0 ? prefix : "NULL", prob * 100, rr->host.len, rr->host.s,
(rr->status ? "ON" : "OFF"), rr->strip,
rr->local_prefix.len, rr->local_prefix.s,
rr->local_suffix.len, rr->local_suffix.s,
rr->comment.len, rr->comment.s);
if(!tmp_node) return -1;
if(!rr->status && rr->backup && rr->backup->rr){
tmp_node = addf_mi_node_child(msg->next, 0, 0, 0, " Rule is backed up by: %.*s\n", rr->backup->rr->host.len, rr->backup->rr->host.s);
if(!tmp_node) return -1;
}
if(rr->backed_up){
rl = rr->backed_up;
i=0;
while(rl){
if(rl->rr){
tmp_node = addf_mi_node_child(msg->next, 0, 0, 0, " Rule is backup for: %.*s", rl->rr->host.len, rl->rr->host.s);
if(!tmp_node) return -1;
}
rl = rl->next;
i++;
}
}
}
}
return 0;
}
/**
* parses the command line argument for options
*
* @param buf the command line argument
* @param opts fifo options
* @param opt_set set of the options
*
* @return 0 on success, -1 on failure
*
* @see dump_fifo()
*/
static int get_fifo_opts(str * buf, fifo_opt_t * opts, unsigned int opt_set[]) {
int opt_argc = 0;
str opt_argv[20];
int i, op = -1;
unsigned int used_opts = 0;
int toklen;
memset(opt_argv, 0, sizeof(opt_argv));
memset(opts, 0, sizeof(fifo_opt_t));
opts->prob = -1;
while((toklen = str_toklen(buf, " \t\r\n")) >=0 && opt_argc < 20) {
buf->s[toklen] = '\0'; /* insert zero termination, since strtod might be used later on it */
opt_argv[opt_argc].len = toklen;
opt_argv[opt_argc].s = buf->s;
buf->s += toklen + 1;
buf->len -= toklen + 1;
LM_DBG("found arg[%i]: %.*s\n", opt_argc, opt_argv[opt_argc].len, opt_argv[opt_argc].s);
opt_argc++;
}
for (i=0; i<opt_argc; i++) {
LM_DBG("token %.*s", opt_argv[i].len, opt_argv[i].s);
if (opt_argv[i].len >= 1) {
switch(*opt_argv[i].s) {
case '-':
/* -{OPTION}{PARAMETER} is not allowed */
if (opt_argv[i].len != 2) {
FIFO_ERR(E_WRONGOPT);
LM_DBG("Unknown option: %.*s\n", opt_argv[i].len, opt_argv[i].s);
return -1;
}
switch(opt_argv[i].s[1]) {
case OPT_DOMAIN_CHR:
op = OPT_DOMAIN;
used_opts |= O_DOMAIN;
break;
case OPT_PREFIX_CHR:
op = OPT_PREFIX;
used_opts |= O_PREFIX;
break;
case OPT_HOST_CHR:
op = OPT_HOST;
used_opts |= O_HOST;
break;
case OPT_NEW_TARGET_CHR:
op = OPT_NEW_TARGET;
used_opts |= O_NEW_TARGET;
break;
case OPT_PROB_CHR:
op = OPT_PROB;
used_opts |= O_PROB;
break;
case OPT_R_PREFIX_CHR:
op = OPT_R_PREFIX;
used_opts |= O_R_PREFIX;
break;
case OPT_R_SUFFIX_CHR:
op = OPT_R_SUFFIX;
used_opts |= O_R_SUFFIX;
break;
case OPT_HASH_INDEX_CHR:
op = OPT_HASH_INDEX;
used_opts |= O_H_INDEX;
break;
case OPT_HELP_CHR:
FIFO_ERR(E_HELP);
return -1;
default: {
FIFO_ERR(E_WRONGOPT);
LM_DBG("Unknown option: %.*s\n", opt_argv[i].len, opt_argv[i].s);
return -1;
}
}
break;
default: switch(op) {
case OPT_DOMAIN:
opts->domain = opt_argv[i];
op = -1;
break;
case OPT_PREFIX:
if (str_strcasecmp(&opt_argv[i], &CR_EMPTY_PREFIX) == 0) {
opts->prefix.s = NULL;
opts->prefix.len = 0;
} else {
opts->prefix = opt_argv[i];
}
op = -1;
break;
case OPT_HOST:
opts->host = opt_argv[i];
op = -1;
break;
case OPT_NEW_TARGET:
opts->new_host = opt_argv[i];
op = -1;
break;
case OPT_PROB:
opts->prob = strtod(opt_argv[i].s, NULL); /* we can use str.s since we zero terminated it earlier */
op = -1;
break;
case OPT_R_PREFIX:
opts->rewrite_prefix = opt_argv[i];
op = -1;
break;
case OPT_STRIP:
str2sint(&opt_argv[i], &opts->strip);
op = -1;
break;
case OPT_R_SUFFIX:
opts->rewrite_suffix = opt_argv[i];
op = -1;
break;
case OPT_HASH_INDEX:
str2sint(&opt_argv[i], &opts->hash_index);
op = -1;
break;
default: {
LM_DBG("No option given\n");
FIFO_ERR(E_NOOPT);
return -1;
}
}
break;
}
}
}
if((used_opts & opt_set[OPT_INVALID]) != 0) {
LM_DBG("invalid option\n");
FIFO_ERR(E_INVALIDOPT);
return -1;
}
if((used_opts & opt_set[OPT_MANDATORY]) != opt_set[OPT_MANDATORY]) {
LM_DBG("option missing\n");
FIFO_ERR(E_MISSOPT);
return -1;
}
return 0;
}
/**
* loads the config data into shared memory (but doesn't really
* share it), updates the routing data and writes it to the config
* file. Afterwards, the global routing data is reloaded.
*
* @param opts pointer to the option structure which contains
* data to be modified or to be added
*
* @return 0 on success, -1 on failure
*/
static int update_route_data(fifo_opt_t * opts) {
struct route_data_t * rd;
int i,j;
int domain_id;
str tmp_domain;
str tmp_prefix;
str tmp_host;
str tmp_rewrite_prefix;
str tmp_rewrite_suffix;
str tmp_comment = str_init("");
if ((rd = shm_malloc(sizeof(struct route_data_t))) == NULL) {
SHM_MEM_ERROR;
return -1;
}
memset(rd, 0, sizeof(struct route_data_t));
if (load_config(rd) < 0) {
LM_ERR("could not load config");
FIFO_ERR(E_LOADCONF);
return -1;
}
if (rule_fixup(rd) < 0) {
LM_ERR("could not fixup rules");
FIFO_ERR(E_RULEFIXUP);
return -1;
}
updated = 0;
if (opts->cmd == OPT_ADD) {
tmp_domain=opts->domain;
tmp_prefix=opts->prefix;
tmp_host=opts->host;
tmp_rewrite_prefix=opts->rewrite_prefix;
tmp_rewrite_suffix=opts->rewrite_suffix;
if (tmp_domain.s==NULL) {
tmp_domain.s="";
tmp_domain.len=0;
}
if (tmp_prefix.s==NULL) {
tmp_prefix.s="";
tmp_prefix.len=0;
}
if (tmp_host.s==NULL) {
tmp_host.s="";
tmp_host.len=0;
}
if (tmp_rewrite_prefix.s==NULL) {
tmp_rewrite_prefix.s="";
tmp_rewrite_prefix.len=0;
}
if (tmp_rewrite_suffix.s==NULL) {
tmp_rewrite_suffix.s="";
tmp_rewrite_suffix.len=0;
}
domain_id = map_name2id(rd->domain_map, rd->domain_num, &tmp_domain);
if (domain_id < 0) {
LM_ERR("cannot find id for domain '%.*s'", tmp_domain.len, tmp_domain.s);
goto errout;
}
if (add_route(rd, 1, domain_id, &tmp_prefix, 0, 0, 0, opts->prob,
&tmp_host, opts->strip, &tmp_rewrite_prefix, &tmp_rewrite_suffix,
opts->status, opts->hash_index, -1, NULL, &tmp_comment) < 0) {
goto errout;
}
updated = 1;
if (rule_fixup(rd) < 0) {
LM_ERR("could not fixup rules after route appending");
FIFO_ERR(E_RULEFIXUP);
goto errout;
}
} else {
for (i=0; i<rd->carrier_num; i++) {
if(rd->carriers[i]){
for (j=0; j<rd->carriers[i]->domain_num; j++) {
if (rd->carriers[i]->domains[j] && rd->carriers[i]->domains[j]->tree) {
if (update_route_data_recursor(rd->carriers[i]->domains[j]->tree, rd->carriers[i]->domains[j]->name, opts) < 0) {
goto errout;
}
}
}
}
}
}
if(!updated){
LM_ERR("no match for update found");
FIFO_ERR(E_NOUPDATE);
goto errout;
}
if (save_config(rd) < 0) {
LM_ERR("could not save config");
FIFO_ERR(E_SAVECONF);
goto errout;
}
if (reload_route_data() == -1) {
LM_ERR("could not reload route data");
FIFO_ERR(E_LOADCONF);
goto errout;
}
clear_route_data(rd);
return 0;
errout:
clear_route_data(rd);
return -1;
}
/**
* Does the work for update_route_data by recursively
* traversing the routing tree
*
* @param node points to the current routing tree node
* @param act_domain routing domain which is currently
* searched
* @param opts points to the fifo command option structure
*
* @see update_route_data()
*
* @return 0 on success, -1 on failure
*/
static int update_route_data_recursor(struct dtrie_node_t *node, str * act_domain, fifo_opt_t * opts) {
int i, hash = 0;
struct route_rule * rr, * prev = NULL, * tmp, * backup;
struct route_flags *rf;
rf = (struct route_flags *)(node->data);
if (rf && rf->rule_list) {
rr = rf->rule_list;
while (rr) {
if ((!opts->domain.len || (strncmp(opts->domain.s, OPT_STAR, strlen(OPT_STAR)) == 0)
|| ((opts->domain.len == act_domain->len) && (strncmp(opts->domain.s, act_domain->s, opts->domain.len) == 0)))
&& ((!opts->prefix.len && !rr->prefix.len) || (strncmp(opts->prefix.s, OPT_STAR, strlen(OPT_STAR)) == 0)
|| (rr->prefix.len == opts->prefix.len && (strncmp(opts->prefix.s, rr->prefix.s, opts->prefix.len) == 0)))
&& ((!opts->host.len && !rr->host.s) || (strncmp(opts->host.s, OPT_STAR, strlen(OPT_STAR)) == 0)
|| ((strncmp(rr->host.s, opts->host.s, opts->host.len) == 0) && (rr->host.len == opts->host.len)))
&& ((opts->prob < 0) || (opts->prob == rr->prob))) {
switch (opts->cmd) {
case OPT_REPLACE:
LM_INFO("replace host %.*s with %.*s\n", rr->host.len, rr->host.s, opts->new_host.len, opts->new_host.s);
if (rr->host.s) {
shm_free(rr->host.s);
}
if (opts->new_host.len) {
if ((rr->host.s = shm_malloc(opts->new_host.len + 1)) == NULL) {
SHM_MEM_ERROR;
FIFO_ERR(E_NOMEM);
return -1;
}
memmove(rr->host.s, opts->new_host.s, opts->new_host.len + 1);
rr->host.len = opts->new_host.len;
rr->host.s[rr->host.len] = '\0';
} else {
rr->host.len = 0;
}
rr->status = opts->status;
prev = rr;
rr = rr->next;
updated = 1;
break;
case OPT_DEACTIVATE:
if (remove_backed_up(rr) < 0) {
LM_ERR("could not reset backup hosts\n");
FIFO_ERR(E_RESET);
return -1;
}
if (opts->new_host.len > 0) {
LM_INFO("deactivating host %.*s\n", rr->host.len, rr->host.s);
if ( opts->new_host.s && (strcmp(opts->new_host.s, rr->host.s) == 0)){
LM_ERR("Backup host the same as initial host %.*s",rr->host.len, rr->host.s);
FIFO_ERR(E_WRONGOPT);
return -1;
}
if (opts->new_host.len == 1 && opts->new_host.s[0] == 'a') {
if ((backup = find_auto_backup(rf, rr)) == NULL) {
LM_ERR("didn't find auto backup route\n");
FIFO_ERR(E_NOAUTOBACKUP);
return -1;
}
} else {
errno = 0;
hash = strtol(opts->new_host.s, NULL, 10);
if (errno == EINVAL || errno == ERANGE) {
if ((backup = find_rule_by_hash(rf, hash)) == NULL) {
LM_ERR("didn't find given backup route (hash %i)\n", hash);
FIFO_ERR(E_NOHASHBACKUP);
return -1;
}
} else {
if ((backup = find_rule_by_host(rf, &opts->new_host)) == NULL) {
LM_ERR("didn't find given backup route (host %.*s)\n", opts->new_host.len, opts->new_host.s);
FIFO_ERR(E_NOHOSTBACKUP);
return -1;
}
}
}
if (add_backup_rule(rr, backup) < 0) {
LM_ERR("couldn't set backup route\n");
FIFO_ERR(E_ADDBACKUP);
return -1;
}
} else {
if(rr->backed_up){
LM_ERR("can't deactivate route without backup route because it is backup route for others\n");
FIFO_ERR(E_DELBACKUP);
return -1;
}
}
rr->status = opts->status;
prev = rr;
rr = rr->next;
updated = 1;
break;
case OPT_ACTIVATE:
LM_INFO("activating host %.*s\n", rr->host.len, rr->host.s);
if (remove_backed_up(rr) < 0) {
LM_ERR("could not reset backup hosts\n");
FIFO_ERR(E_RESET);
return -1;
}
rr->status = opts->status;
prev = rr;
rr = rr->next;
updated = 1;
break;
case OPT_REMOVE:
LM_INFO("removing host %.*s\n", rr->host.len, rr->host.s);
if (rr->backed_up){
LM_ERR("cannot remove host %.*s which is backup for other hosts\n", rr->host.len, rr->host.s);
FIFO_ERR(E_DELBACKUP);
return -1;
}
if (remove_backed_up(rr) < 0) {
LM_ERR("could not reset backup hosts\n");
FIFO_ERR(E_RESET);
return -1;
}
if (prev) {
prev->next = rr->next;
tmp = rr;
rr = prev;
destroy_route_rule(tmp);
prev = rr;
rr = rr->next;
} else {
rf->rule_list = rr->next;
tmp = rr;
rr = rf->rule_list;
destroy_route_rule(tmp);
}
rf->rule_num--;
rf->max_targets--;
updated = 1;
break;
default:
rr = rr->next;
break;
}
} else {
prev = rr;
rr = rr->next;
}
}
}
for (i=0; i<cr_match_mode; i++) {
if (node->child[i]) {
if (update_route_data_recursor(node->child[i], act_domain, opts) < 0) {
return -1;
}
}
}
return 0;
}
/**
* prints a short help text for fifo command usage
*/
static struct mi_root* print_replace_help(void) {
struct mi_root* rpl_tree;
struct mi_node* node;
rpl_tree = init_mi_tree( 200, MI_OK_S, MI_OK_LEN );
if(rpl_tree == NULL)
return 0;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "carrierroute options usage:");
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c searched/new remote host\n", OPT_HOST_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c replacement/backup host", OPT_NEW_TARGET_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: searched/new domain", OPT_DOMAIN_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: searched/new prefix", OPT_PREFIX_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: searched/new weight (0..1)", OPT_PROB_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: new rewrite prefix", OPT_R_PREFIX_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: new rewrite suffix", OPT_R_SUFFIX_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: new hash index", OPT_HASH_INDEX_CHR);
if(node == NULL)
goto error;
node = addf_mi_node_child( &rpl_tree->node, 0, 0, 0, "\t-%c: prints this help", OPT_HELP_CHR);
if(node == NULL)
goto error;
return rpl_tree;
error:
free_mi_tree(rpl_tree);
return 0;
}
/**
* interpret the fifo errors, creates a mi tree
* @todo this is currently not evaluated for errors during update_route_data
*/
struct mi_root* print_fifo_err(void) {
struct mi_root* rpl_tree;
switch (fifo_err) {
case E_MISC:
rpl_tree = init_mi_tree( 400, "An error occured", 17);
if(rpl_tree == NULL)
return 0;
break;
case E_NOOPT:
rpl_tree = init_mi_tree( 400, "No option given", 16);
if(rpl_tree == NULL)
return 0;
break;
case E_WRONGOPT:
rpl_tree = init_mi_tree( 400, MI_BAD_PARM_S, MI_BAD_PARM_LEN);
if(rpl_tree == NULL)
return 0;
break;
case E_NOMEM:
rpl_tree = init_mi_tree( 500, "Out of memory", 14);
if(rpl_tree == NULL)
return 0;
break;
case E_RESET:
rpl_tree = init_mi_tree( 500, "Could not reset backup routes", 30);
if(rpl_tree == NULL)
return 0;
break;
case E_NOAUTOBACKUP:
rpl_tree = init_mi_tree( 400, "No auto backup route found", 27);
if(rpl_tree == NULL)
return 0;
break;
case E_NOHASHBACKUP:
rpl_tree = init_mi_tree( 400, "No backup route for given hash found", 37);
if(rpl_tree == NULL)
return 0;
break;
case E_NOHOSTBACKUP:
rpl_tree = init_mi_tree( 400, "No backup route for given host found", 37);
if(rpl_tree == NULL)
return 0;
break;
case E_ADDBACKUP:
rpl_tree = init_mi_tree( 500, "Could not set backup route", 27);
if(rpl_tree == NULL)
return 0;
break;
case E_DELBACKUP:
rpl_tree = init_mi_tree( 400, "Could not delete or deactivate route, it is backup for other routes", 68);
if(rpl_tree == NULL)
return 0;
break;
case E_LOADCONF:
rpl_tree = init_mi_tree( 500, "Could not load config from file", 32);
if(rpl_tree == NULL)
return 0;
break;
case E_SAVECONF:
rpl_tree = init_mi_tree( 500, "Could not save config", 22);
if(rpl_tree == NULL)
return 0;
break;
case E_INVALIDOPT:
rpl_tree = init_mi_tree( 400, MI_BAD_PARM_S, MI_BAD_PARM_LEN);
if(rpl_tree == NULL)
return 0;
break;
case E_MISSOPT:
rpl_tree = init_mi_tree(400, MI_MISSING_PARM_S, MI_MISSING_PARM_LEN);
if(rpl_tree == NULL)
return 0;
break;
case E_RULEFIXUP:
rpl_tree = init_mi_tree( 500, "Could not fixup rules", 22);
if(rpl_tree == NULL)
return 0;
break;
case E_NOUPDATE:
rpl_tree = init_mi_tree( 500, "No match for update found", 26);
if(rpl_tree == NULL)
return 0;
break;
case E_HELP:
return print_replace_help();
break;
default:
rpl_tree = init_mi_tree( 500, "An error occured", 17);
if(rpl_tree == NULL)
return 0;
break;
}
return rpl_tree;
}