--- embedtools/src/vap.c 2010/10/27 16:35:54 1.1.2.3 +++ embedtools/src/vap.c 2010/10/28 15:45:27 1.1.2.6 @@ -15,7 +15,7 @@ wifi_getParent(const char *csVAP, char *psParent, size memset(psParent, 0, plen); snprintf(szOID, STRSIZ, "net.wlan.%s.%%parent", csVAP + 4); if (sysctlbyname(szOID, psParent, &plen, NULL, 0) == -1) { - syslog(LOG_ERR, "Error:: can`t get parent #%d - %s\n", errno, strerror(errno)); +// syslog(LOG_ERR, "Error:: can`t get parent #%d - %s\n", errno, strerror(errno)); return -1; } else psParent[plen] = 0; @@ -23,7 +23,7 @@ wifi_getParent(const char *csVAP, char *psParent, size return 0; } -static inline int +inline int wifi_chkIface(const char *csVAP, char **ppsIF, int nIF) { char szParent[IFNAMSIZ]; @@ -128,4 +128,150 @@ wifi_buildWDS(int fd, char **ppsIF, int nIF) } return wds; +} + +inline int +wifi_destroyWDS(const char *csIface, struct dwds_if **wds) +{ + struct dwds_if *p, **pp; + + assert(csIface); + assert(wds); + + for (pp = wds; (p = *pp); pp = &p->if_next) + if (!strncmp(p->if_name, csIface, IFNAMSIZ)) + break; + if (p) { + *pp = p->if_next; + free(p); + return 0; + } + + return 1; +} + +static int +wifi_vapDestroy(const char *csVAP) +{ + struct ieee80211req ifr; + int s; + + assert(csVAP); + + s = socket(PF_INET, SOCK_DGRAM, 0); + if (s == -1) { + syslog(LOG_ERR, "Error:: destroy socket(vap) %m\n"); + return -1; + } + + memset(&ifr, 0, sizeof ifr); + strlcpy(ifr.i_name, csVAP, IFNAMSIZ); + if (ioctl(s, SIOCIFDESTROY, &ifr) == -1) { + syslog(LOG_ERR, "Error:: destroy ioctl(vap) %m\n"); + close(s); + return -1; + } else + close(s); + + return 0; +} + +inline int +wifi_leaveWDS(struct ether_addr bssid, struct dwds_if **wds) +{ + struct dwds_if *p, **pp; + + assert(wds); + + for (pp = wds; (p = *pp); pp = &p->if_next) + if (!memcmp(p->if_bssid, &bssid, IEEE80211_ADDR_LEN)) + break; + if (p) { + *pp = p->if_next; + if (wifi_vapDestroy(p->if_name) != -1) + VERB(1) syslog(LOG_INFO, "BSSID:%s WDS VAP %s destroyed\n", + ether_ntoa(&bssid), p->if_name); + free(p); + return 0; + } + + return 1; +} + +static int +wifi_vapCreate(const char *csIface, struct dwds_if *p) +{ + struct ieee80211_clone_params cp; + struct ifreq ifr; + struct ether_addr bssid; + int s; + + assert(csIface); + assert(p); + + s = socket(PF_INET, SOCK_DGRAM, 0); + if (s == -1) { + syslog(LOG_ERR, "Error:: create socket(vap) %m\n"); + return -1; + } + + memset(&cp, 0, sizeof cp); + strlcpy(cp.icp_parent, csIface, IFNAMSIZ); + cp.icp_opmode = IEEE80211_M_WDS; + memcpy(cp.icp_bssid, p->if_bssid, IEEE80211_ADDR_LEN); + + memset(&ifr, 0, sizeof ifr); + strlcpy(ifr.ifr_name, "wlan", IFNAMSIZ); + ifr.ifr_data = (void *) &cp; + + if (ioctl(s, SIOCIFCREATE2, &ifr) == -1) { + memcpy(&bssid, cp.icp_bssid, IEEE80211_ADDR_LEN); + syslog(LOG_ERR, "Error:: create ioctl(vap) mode %u flags 0x%x parent %s bssid %s %m\n", + cp.icp_opmode, cp.icp_flags, cp.icp_parent, ether_ntoa(&bssid)); + close(s); + return -1; + } else { + strlcpy(p->if_name, ifr.ifr_name, IFNAMSIZ); + close(s); + } + + return 0; +} + +inline int +wifi_createWDS(const char *csIface, struct ether_addr bssid, struct dwds_if **wds) +{ + struct dwds_if *p; + char szParent[IFNAMSIZ]; + + assert(csIface); + assert(wds); + + for (p = *wds; p; p = p->if_next) + if (!memcmp(p->if_bssid, &bssid, IEEE80211_ADDR_LEN)) { + VERB(1) syslog(LOG_INFO, "BSSID:%s WDS VAP already created (%s)\n", + ether_ntoa(&bssid), csIface); + return 1; + } + if (wifi_getParent(csIface, szParent, IFNAMSIZ) == -1) { + syslog(LOG_ERR, "Error:: %s no pointer to parent interface\n", csIface); + return -1; + } + + p = malloc(sizeof(struct dwds_if)); + if (!p) { + syslog(LOG_ERR, "Error:: malloc failed: %m\n"); + return -1; + } else + memcpy(p->if_bssid, &bssid, IEEE80211_ADDR_LEN); + if (wifi_vapCreate(csIface, p) == -1) { + free(p); + return -1; + } else { + p->if_next = *wds; + *wds = p; + VERB(1) syslog(LOG_INFO, "BSSID:%s create WDS VAP %s\n", ether_ntoa(&bssid), p->if_name); + } + + return 0; }