3c0a1389d1
FossilOrigin-Name: 4344c4de8b90e241f76128dc862b7ec0446a4b701b356a52b643ff63727861a1
838 lines
16 KiB
C
838 lines
16 KiB
C
/*
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This file is part of actube.
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libcapwap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libcapwap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <sys/utsname.h>
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#include <confuse.h>
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#include "cw/capwap.h"
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#include "cw/sock.h"
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#include "cw/log.h"
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#include "cw/dbg.h"
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#include "cw/cw_util.h"
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#include "conf.h"
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#include "ac.h"
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uint8_t conf_macaddress[12];
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uint8_t conf_macaddress_len = 0;
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long conf_strict_capwap = 1;
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long conf_strict_headers = 0;
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/*int conf_capwap_mode = CW_MODE_CAPWAP;*/
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const char *conf_acname = NULL;
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int conf_acname_len = 0;
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char *conf_acid = NULL;
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char *conf_primary_if = NULL;
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long conf_max_wtps = CONF_DEFAULT_MAXWTPS;
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char *conf_logfilename = CONF_DEFAULT_LOGFILENAME;
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struct sockaddr_storage *conf_salist = NULL;
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char **conf_listen_addrs;
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int conf_listen_addrs_len = 0;
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char **conf_mcast_groups = 0;
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int conf_mcast_groups_len = 0;
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char **conf_bcast_addrs = 0;
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int conf_bcast_addrs_len;
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struct sockaddr_storage *conf_bsalist = NULL;
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int conf_salist_len = 0;
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int conf_bsalist_len = 0;
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struct sockaddr *conf_ac_ips;
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int conf_ac_ips_len;
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char *conf_sslcertfilename = NULL;
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char *conf_sslkeyfilename = NULL;
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char *conf_sslkeypass = NULL;
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char *conf_sslcipher = NULL;
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char *conf_dtls_psk = NULL;
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int conf_security = 0;
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long conf_vendor_id = CONF_DEFAULT_VENDOR_ID;
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bstr_t conf_hardware_version = NULL;
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bstr_t conf_software_version = NULL;
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bstr_t conf_cisco_hardware_version = NULL;
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bstr_t conf_cisco_software_version = NULL;
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int conf_use_loopback = 0;
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long conf_debug_level = -1;
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char *conf_db_file = 0;
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int conf_ipv4 = 1;
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#ifdef WITH_IPV6
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int conf_ipv6 = 1;
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#endif
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#ifdef WITH_LWAPP
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int conf_lwapp = 1;
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char *conf_lw_control_port = 0;
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#endif
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char *conf_image_dir = 0;
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char *conf_control_port = 0;
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int conf_dtls_verify_peer = 1;
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static int init_acname()
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{
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if (conf_acname == NULL) {
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char *s = malloc(strlen(CONF_DEFAULT_ACNAME) + strlen(conf_acid) + 1);
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sprintf(s, "%s%s", CONF_DEFAULT_ACNAME, conf_acid);
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conf_acname = s;
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}
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conf_acname_len = strlen(conf_acname);
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return 1;
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}
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#include "../mod/modload.h"
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static int init_acid()
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{
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int i;
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char *s;
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if (conf_acid != NULL)
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return 1;
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#ifdef WITH_IPV6
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conf_primary_if = sock_get_primary_if(AF_INET6);
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if (!conf_primary_if)
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conf_primary_if = sock_get_primary_if(AF_INET);
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#else
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conf_primary_if = get_primary_if(AF_INET);
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#endif
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if (!conf_primary_if) {
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cw_log(LOG_ERR,
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"Fatal: Unable to detect primary interface, needed to set ac_id. Pleas use confiPleas u to set ac_id");
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return 0;
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}
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if (!sock_getifhwaddr(conf_primary_if, conf_macaddress, &conf_macaddress_len)) {
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cw_log(LOG_ERR, "Fatal: Unable to detect link layer address for %s\n",
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conf_primary_if);
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return 0;
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};
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conf_acid = malloc(2 * conf_macaddress_len + 1);
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s = conf_acid;
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for (i = 0; i < conf_macaddress_len; i++) {
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s += sprintf(s, "%02X", conf_macaddress[i]);
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}
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return 1;
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}
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static int init_dtls()
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{
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if (conf_dtls_psk != NULL) {
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/*
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// conf_security=CW_SECURITY_FLAGS_S;
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*/
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}
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return 1;
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}
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static int init_vendor_id()
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{
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return 1;
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}
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/*
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static int init_version()
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{
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// Init hardware version
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if (!conf_hardware_version) {
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struct utsname u;
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int rc = uname(&u);
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if (rc < 0)
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conf_hardware_version =
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(bstr_t) strdup(CONF_DEFAULT_HARDWARE_VERSION);
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else {
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char str[265];
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sprintf(str, "%s / %s %s", u.machine, u.sysname, u.release);
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conf_hardware_version = (bstr_t) strdup(str);
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}
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}
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bstr_replace(&conf_hardware_version,
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bstr_create_from_cfgstr((char *) conf_hardware_version));
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// software version
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if (!conf_software_version)
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conf_software_version = (bstr_t) strdup(CONF_DEFAULT_SOFTWARE_VERSION);
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bstr_replace(&conf_software_version,
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bstr_create_from_cfgstr((char *) conf_software_version));
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// Cisco hardware version
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if (!conf_cisco_hardware_version)
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conf_cisco_hardware_version =
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(bstr_t) strdup(CONF_DEFAULT_CISCO_HARDWARE_VERSION);
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bstr_replace(&conf_cisco_hardware_version,
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bstr_create_from_cfgstr((char *) conf_cisco_hardware_version));
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return 1;
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}
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*/
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static int init_control_port()
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{
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char str[30];
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sprintf(str, "%d", CONF_DEFAULT_CONTROL_PORT);
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conf_control_port =
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(char *) cw_setstr((uint8_t **) & conf_control_port, (uint8_t *) str,
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strlen(str));
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#ifdef WITH_LWAPP
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sprintf(str, "%d", CONF_DEFAULT_LW_CONTROL_PORT);
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conf_lw_control_port = strdup(str);
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#endif
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return 1;
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}
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#include <ifaddrs.h>
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static int init_listen_addrs()
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{
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struct ifaddrs *ifap, *ifa;
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int rc;
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int ctr;
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if (conf_listen_addrs != 0)
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return 1;
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rc = getifaddrs(&ifap);
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if (rc == -1)
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return 0;
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/* count the addresses */
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ctr = 0;
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for (ifa = ifap; ifa != 0; ifa = ifa->ifa_next) {
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if (!ifa->ifa_addr)
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continue;
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if (ifa->ifa_addr->sa_family == AF_INET && conf_ipv4)
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ctr++;
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#ifdef WITH_IPV6
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if (ifa->ifa_addr->sa_family == AF_INET6 && conf_ipv6)
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ctr++;
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#endif
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}
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conf_listen_addrs = malloc(sizeof(char *) * ctr);
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if (!conf_listen_addrs) {
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rc = 0;
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goto errX;
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}
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memset(conf_listen_addrs, 0, sizeof(char *) * ctr);
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ctr = 0;
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/* get the addresses */
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for (ifa = ifap; ifa != 0; ifa = ifa->ifa_next) {
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char str[100];
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/** ignore loopback interfaces if configured*/
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if (!conf_use_loopback) {
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if ((ifa->ifa_flags & IFF_LOOPBACK)) {
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continue;
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}
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}
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if (!ifa->ifa_addr)
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continue;
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if (ifa->ifa_addr->sa_family == AF_INET && conf_ipv4) {
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sock_addrtostr(ifa->ifa_addr, str, 100,0);
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conf_listen_addrs[ctr] =
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(char *) cw_setstr((uint8_t **) & conf_listen_addrs[ctr],
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(uint8_t *) str, strlen(str));
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if (conf_listen_addrs[ctr])
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ctr++;
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}
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if (ifa->ifa_addr->sa_family == AF_INET6 && conf_ipv6) {
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sock_addrtostr(ifa->ifa_addr, str, 100,0);
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if (strncmp(str, "fe80:", 5) == 0) {
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strcat(str, "%");
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strcat(str, ifa->ifa_name);
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}
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conf_listen_addrs[ctr] =
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(char *) cw_setstr((uint8_t **) & conf_listen_addrs[ctr],
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(uint8_t *) str, strlen(str));
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if (conf_listen_addrs[ctr])
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ctr++;
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}
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}
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conf_listen_addrs_len = ctr;
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rc = 1;
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errX:
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freeifaddrs(ifap);
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return rc;
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}
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static char *conf_default_mcast_groups_ipv4[] = {
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"224.0.1.140",
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};
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#ifdef WITH_IPV6
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static char *conf_default_mcast_groups_ipv6[] = {
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"ff01:0:0:0:0:0:0:18c",
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/* "ff01:0:0:0:0:0:0:18c",
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"ff02:0:0:0:0:0:0:18c%em0",
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"ff03:0:0:0:0:0:0:18c",
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"ff04:0:0:0:0:0:0:18c",
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"ff05:0:0:0:0:0:0:18c",
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"ff06:0:0:0:0:0:0:18c"
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*/
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};
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#endif
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/*
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static int add_bcast_addr(void *priv, void *addr)
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{
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printf("Callback Called\n");
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union mavldata *ud;
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ud = addr;
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printf("Callback Called %s\n", ud->str);
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char *s = (char *) addr;
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conf_bcast_addrs[conf_bcast_addrs_len] = strdup(s);
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if (conf_bcast_addrs[conf_bcast_addrs_len] != 0)
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conf_bcast_addrs_len++;
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return 1;
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}
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*/
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/*
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* Initialize broadcast addresses (ipv4 only)
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*/
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int init_bcast_addrs()
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{
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int rc;
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char str[100];
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struct ifaddrs *ifa0, *ifa;
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mavl_t t;
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mavliter_t it;
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if (conf_bcast_addrs)
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return 1;
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if (!conf_ipv4)
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return 1;
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t = mavl_create_str();
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if (t==NULL)
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return 0;
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/* add the default broadast address */
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mavl_add_str(t, cw_strdup("255.255.255.255"));
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/* add all other local broadcast addresses */
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rc = getifaddrs(&ifa0);
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if (rc == -1)
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return 0;
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for (ifa = ifa0; ifa != 0; ifa = ifa->ifa_next) {
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struct sockaddr *sa;
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if (!(ifa->ifa_flags & IFF_BROADCAST))
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continue;
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if (!conf_use_loopback) {
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if ((ifa->ifa_flags & IFF_LOOPBACK))
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continue;
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}
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sa = ifa->ifa_addr;
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if (!sa)
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continue;
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if (sa->sa_family != AF_INET)
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continue;
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if (ifa->ifa_broadaddr) {
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sock_addrtostr(ifa->ifa_broadaddr, str, 100,1);
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*strchr(str, ':') = 0;
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mavl_add_str(t, cw_strdup(str));
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}
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}
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conf_bcast_addrs = malloc(t->count * sizeof(char *));
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mavliter_init(&it,t);
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mavliter_foreach(&it){
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char * d;
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d = mavliter_get_str(&it);
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conf_bcast_addrs[conf_bcast_addrs_len] = cw_strdup(d);
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if (conf_bcast_addrs[conf_bcast_addrs_len] != 0)
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conf_bcast_addrs_len++;
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}
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mavl_destroy(t);
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freeifaddrs(ifa0);
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return 1;
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}
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int init_mcast_groups()
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{
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int ctr;
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int i;
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int n = 0;
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int n4 = 0, n6 = 0;
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if (conf_mcast_groups)
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return 1;
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if (conf_ipv4) {
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n4 = sizeof(conf_default_mcast_groups_ipv4) / sizeof(char *);
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}
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if (conf_ipv6) {
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n6 = sizeof(conf_default_mcast_groups_ipv6) / sizeof(char *);
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}
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n = n4 + n6;
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if (n == 0)
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return 1;
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conf_mcast_groups = malloc(sizeof(char *) * n);
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if (!conf_mcast_groups)
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return 0;
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memset(conf_mcast_groups, 0, n * sizeof(char *));
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ctr = 0;
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for (i = 0; i < n4; i++) {
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uint8_t *g = (uint8_t *) conf_default_mcast_groups_ipv4[i];
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conf_mcast_groups[ctr] =
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(char *) cw_setstr((uint8_t **) & conf_mcast_groups[ctr], g,
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strlen((char *) g));
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if (conf_mcast_groups[ctr])
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ctr++;
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}
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for (i = 0; i < n6; i++) {
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uint8_t *g = (uint8_t *) conf_default_mcast_groups_ipv6[i];
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conf_mcast_groups[ctr] =
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(char *) cw_setstr((uint8_t **) & conf_mcast_groups[ctr], g,
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strlen((char *) g));
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if (conf_mcast_groups[ctr])
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ctr++;
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}
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conf_mcast_groups_len = n;
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return 1;
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}
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static int conf_read_strings(cfg_t * cfg, char *name, char ***dst, int *len)
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{
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int n, i;
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n = cfg_size(cfg, name);
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*len = n;
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if (n == 0)
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return 1;
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*dst = malloc(sizeof(char *) * n);
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if (!*dst)
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return 0;
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for (i = 0; i < n; i++) {
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char *str = cfg_getnstr(cfg, name, i);
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if (!((*dst)[i] = malloc(strlen(str) + 1))) {
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*len = 0;
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return 0;
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}
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strcpy((*dst)[i], str);
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}
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return 1;
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}
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/*
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struct conf_dbg_level_names{
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const char *name;
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int level;
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};
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*/
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static int conf_read_dbg_level(cfg_t * cfg)
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{
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const char *name = "dbg";
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int n, i;
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n = cfg_size(cfg, name);
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for (i = 0; i < n; i++) {
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char *str = cfg_getnstr(cfg, name, i);
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int b = cw_strlist_get_id(cw_dbg_strings, str);
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cw_dbg_set_level(b, 1);
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}
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return 1;
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}
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struct cw_Mod ** conf_mods;
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char *conf_mods_dir = "";
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/*
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* Read the module names from config file
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*/
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static int conf_read_mods(cfg_t *cfg){
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int n, i;
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n = cfg_size(cfg,CFG_ENTRY_MODS);
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conf_mods = malloc(sizeof(struct cw_Mod *)*(n+1));
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cw_dbg(DBG_INFO,"Mods directory: %s",conf_mods_dir);
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cw_mod_set_path(conf_mods_dir);
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for (i=0; i < n; i++){
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char *modname = cfg_getnstr(cfg, CFG_ENTRY_MODS, i);
|
|
struct cw_Mod * mod = cw_mod_load(modname, actube_global_cfg, CW_ROLE_AC);
|
|
|
|
if (!mod)
|
|
return 0;
|
|
cw_mod_add_to_list(mod);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
void conf_init_capwap_mode()
|
|
{
|
|
if (conf_capwap_mode_str == NULL)
|
|
return;
|
|
|
|
if (0 == strcmp(conf_capwap_mode_str, "cipwap")) {
|
|
conf_capwap_mode = CW_MODE_CIPWAP;
|
|
}
|
|
|
|
if (0 == strcmp(conf_capwap_mode_str, "capwap")) {
|
|
conf_capwap_mode = CW_MODE_CAPWAP;
|
|
}
|
|
|
|
|
|
}
|
|
*/
|
|
|
|
|
|
int conf_parse_listen_addr(const char *addrstr, char *saddr, char *port, int *proto)
|
|
{
|
|
char *b;
|
|
int c;
|
|
int i, l;
|
|
char *ctrlport;
|
|
char *p = strchr(addrstr, '/');
|
|
if (!p)
|
|
*proto = AC_PROTO_CAPWAP;
|
|
else {
|
|
if (strcmp("capwap", p + 1) == 0)
|
|
*proto = AC_PROTO_CAPWAP;
|
|
else if (strcmp("lwapp", p + 1) == 0)
|
|
*proto = AC_PROTO_LWAPP;
|
|
else
|
|
*proto = AC_PROTO_UNKNOWN;
|
|
}
|
|
|
|
|
|
switch (*proto) {
|
|
case AC_PROTO_CAPWAP:
|
|
ctrlport = CAPWAP_CONTROL_PORT_STR;
|
|
break;
|
|
case AC_PROTO_LWAPP:
|
|
ctrlport = LWAPP_CONTROL_PORT_STR;
|
|
break;
|
|
default:
|
|
ctrlport = "0";
|
|
}
|
|
|
|
|
|
|
|
c = 0;
|
|
|
|
if (p)
|
|
l = p - addrstr;
|
|
else
|
|
l = strlen(addrstr);
|
|
|
|
for (i = 0; i < l; i++) {
|
|
if (addrstr[i] == ':')
|
|
c++;
|
|
}
|
|
|
|
/* no colon found, asume its ipv4 w/o port */
|
|
if (c == 0) {
|
|
strncpy(saddr, addrstr, l);
|
|
saddr[l] = 0;
|
|
strcpy(port, ctrlport);
|
|
return 0;
|
|
}
|
|
|
|
/* one colon found, so we assume, its an ipv4
|
|
* address with port */
|
|
if (c == 1) {
|
|
char *c = strchr(addrstr, ':');
|
|
strncpy(saddr, addrstr, c - addrstr);
|
|
saddr[c - addrstr] = 0;
|
|
strncpy(port, c + 1, l - (c - addrstr));
|
|
port[l - (c - addrstr) - 1] = 0;
|
|
return 0;
|
|
}
|
|
|
|
/* we assume now, its ipv6 */
|
|
b = strstr(addrstr, "]:");
|
|
if (!b) {
|
|
/* ippv6 w/o port */
|
|
strncpy(saddr, addrstr, l);
|
|
saddr[l] = 0;
|
|
strcpy(port, ctrlport);
|
|
return 0;
|
|
}
|
|
|
|
strncpy(saddr, addrstr + 1, b - addrstr);
|
|
saddr[b - addrstr - 1] = 0;
|
|
strncpy(port, b + 2, l - (b - addrstr) - 2);
|
|
port[l - (b - addrstr) - 2] = 0;
|
|
return 0;
|
|
}
|
|
|
|
static void errfunc(cfg_t *cfg, const char *fmt, va_list ap){
|
|
|
|
if (cfg && cfg->filename && cfg->line)
|
|
fprintf(stderr, "ERROR in %s:%d: ",
|
|
cfg->filename, cfg->line);
|
|
else if (cfg && cfg->filename)
|
|
fprintf(stderr, "ERROR in %s:", cfg->filename);
|
|
vfprintf(stderr, fmt, ap);
|
|
fprintf(stderr,"\n");
|
|
}
|
|
|
|
|
|
int read_config(const char *filename)
|
|
{
|
|
int i, n;
|
|
|
|
cfg_opt_t opts[] = {
|
|
CFG_STR_LIST("mods", "{}", CFGF_NONE),
|
|
CFG_SIMPLE_STR("mods_dir", &conf_mods_dir),
|
|
|
|
CFG_STR_LIST("dbg", "{}", CFGF_NONE),
|
|
CFG_STR_LIST("listen", "{}", CFGF_NONE),
|
|
CFG_STR_LIST("mcast_groups", "{}", CFGF_NONE),
|
|
CFG_STR_LIST("broadcast_listen", "{}", CFGF_NONE),
|
|
CFG_STR_LIST("ac_ips", "{}", CFGF_NONE),
|
|
CFG_SIMPLE_STR("control_port", &conf_control_port),
|
|
|
|
CFG_SIMPLE_BOOL("strict_capwap", &conf_strict_capwap),
|
|
CFG_SIMPLE_BOOL("strict_headers", &conf_strict_headers),
|
|
CFG_SIMPLE_BOOL("use_loopback", &conf_use_loopback),
|
|
/*// CFG_SIMPLE_STR("capwap_mode", &conf_capwap_mode_str),*/
|
|
|
|
|
|
#ifdef WITH_LWAPP
|
|
CFG_SIMPLE_STR("lw_control_port", &conf_lw_control_port),
|
|
CFG_SIMPLE_BOOL("lwapp", &conf_lwapp),
|
|
#endif
|
|
|
|
CFG_SIMPLE_INT("max_wtps", &conf_max_wtps),
|
|
CFG_SIMPLE_INT("debug_level", &conf_debug_level),
|
|
|
|
|
|
CFG_SIMPLE_INT("vendor_id", &conf_vendor_id),
|
|
CFG_SIMPLE_STR("ac_id", &conf_acid),
|
|
CFG_SIMPLE_STR("ac_name", &conf_acname),
|
|
CFG_SIMPLE_STR("hardware_version", &conf_hardware_version),
|
|
CFG_SIMPLE_STR("software_version", &conf_software_version),
|
|
|
|
CFG_SIMPLE_STR("cisco_hardware_version", &conf_cisco_hardware_version),
|
|
CFG_SIMPLE_STR("cisco_software_version", &conf_cisco_software_version),
|
|
|
|
|
|
|
|
CFG_SIMPLE_STR("ssl_cert", &conf_sslcertfilename),
|
|
CFG_SIMPLE_STR("ssl_key", &conf_sslkeyfilename),
|
|
CFG_SIMPLE_STR("ssl_key_pass", &conf_sslkeypass),
|
|
CFG_SIMPLE_STR("ssl_cipher", &conf_sslcipher),
|
|
CFG_SIMPLE_STR("dtls_psk", &conf_dtls_psk),
|
|
|
|
CFG_SIMPLE_BOOL("dtls_verify_peer", &conf_dtls_verify_peer),
|
|
CFG_SIMPLE_BOOL("ipv4", &conf_ipv4),
|
|
CFG_SIMPLE_BOOL("ipv6", &conf_ipv6),
|
|
CFG_SIMPLE_STR("db_file", &conf_db_file),
|
|
CFG_SIMPLE_STR("image_dir", &conf_image_dir),
|
|
|
|
CFG_END()
|
|
};
|
|
cfg_t *cfg;
|
|
|
|
if (!init_control_port())
|
|
return 0;
|
|
|
|
|
|
cfg = cfg_init(opts, CFGF_NONE);
|
|
cfg_set_error_function(cfg, errfunc);
|
|
|
|
if (cfg_parse(cfg, filename))
|
|
return 0;
|
|
|
|
|
|
/* read debug options */
|
|
conf_read_dbg_level(cfg);
|
|
|
|
/* read the listen addresses */
|
|
conf_read_strings(cfg, "listen", &conf_listen_addrs, &conf_listen_addrs_len);
|
|
|
|
/* read multi cast groups */
|
|
conf_read_strings(cfg, "mcast_groups", &conf_mcast_groups,
|
|
&conf_mcast_groups_len);
|
|
|
|
/* read ipv4 broadcast addresses */
|
|
conf_read_strings(cfg, "broadcast_listen", &conf_bcast_addrs, &conf_bcast_addrs_len);
|
|
|
|
|
|
/* read ac_ips */
|
|
n = cfg_size(cfg, "ac_ips");
|
|
if (!(conf_ac_ips = malloc(sizeof(struct sockaddr) * n)))
|
|
return 0;
|
|
|
|
conf_ac_ips_len = n;
|
|
for (i = 0; i < n; i++) {
|
|
struct sockaddr sa;
|
|
char *str = cfg_getnstr(cfg, "ac_ips", i);
|
|
if (sock_strtoaddr(cfg_getnstr(cfg, "ac_ips", i), &sa))
|
|
conf_ac_ips[i] = sa;
|
|
else {
|
|
perror(str);
|
|
}
|
|
}
|
|
|
|
if (!conf_read_mods(cfg)){
|
|
cfg_free(cfg);
|
|
return 0;
|
|
}
|
|
|
|
|
|
cfg_free(cfg);
|
|
|
|
if (!init_acid())
|
|
return 0;
|
|
|
|
if (!init_acname())
|
|
return 0;
|
|
|
|
/* if (!init_version())
|
|
return 0;
|
|
*/
|
|
|
|
if (!init_vendor_id())
|
|
return 0;
|
|
|
|
if (!init_dtls())
|
|
return 0;
|
|
|
|
if (!conf_sslcipher)
|
|
conf_sslcipher = CAPWAP_CIPHER;
|
|
|
|
if (!conf_image_dir)
|
|
conf_image_dir = CONF_DEFAULT_IMAGE_DIR;
|
|
|
|
|
|
|
|
init_listen_addrs();
|
|
init_mcast_groups();
|
|
init_bcast_addrs();
|
|
|
|
|
|
return 1;
|
|
}
|
|
|
|
void free_config()
|
|
{
|
|
|
|
}
|