Annotation of embedtools/src/vap.c, revision 1.1.2.5
1.1.2.1 misho 1: #include "global.h"
2: #include "dwds.h"
3:
4:
1.1.2.3 misho 5: static inline int
1.1.2.2 misho 6: wifi_getParent(const char *csVAP, char *psParent, size_t plen)
7: {
8: char szOID[STRSIZ] = { 0 };
9:
10: FTRACE(5);
11:
12: assert(csVAP);
13: assert(psParent);
14:
15: memset(psParent, 0, plen);
16: snprintf(szOID, STRSIZ, "net.wlan.%s.%%parent", csVAP + 4);
17: if (sysctlbyname(szOID, psParent, &plen, NULL, 0) == -1) {
1.1.2.4 misho 18: // syslog(LOG_ERR, "Error:: can`t get parent #%d - %s\n", errno, strerror(errno));
1.1.2.2 misho 19: return -1;
20: } else
21: psParent[plen] = 0;
22:
23: return 0;
24: }
25:
1.1.2.3 misho 26: static inline int
27: wifi_chkIface(const char *csVAP, char **ppsIF, int nIF)
1.1.2.2 misho 28: {
29: char szParent[IFNAMSIZ];
30: register int i;
31:
32: FTRACE(5);
33:
1.1.2.3 misho 34: assert(csVAP);
1.1.2.2 misho 35:
1.1.2.3 misho 36: if (wifi_getParent(csVAP, szParent, IFNAMSIZ) == -1)
1.1.2.2 misho 37: return -1;
38:
39: for (i = 0; i < nIF; i++)
40: if (!strcasecmp(ppsIF[i], "any") || !strcmp(ppsIF[i], szParent))
41: return 1; /* OK, vap is child */
42:
1.1.2.3 misho 43: syslog(LOG_ERR, "Error:: Interface %s parent %s not being monitored", csVAP, szParent);
1.1.2.2 misho 44: return 0;
45: }
46:
1.1.2.3 misho 47: static inline int
1.1.2.2 misho 48: wifi_isWDS(int fd, const char *csVAP)
49: {
50: struct ifmediareq ifmr;
51:
52: FTRACE(5);
53:
54: assert(csVAP);
55:
56: memset(&ifmr, 0, sizeof ifmr);
57: strlcpy(ifmr.ifm_name, csVAP, sizeof ifmr.ifm_name);
58: if (ioctl(fd, SIOCGIFMEDIA, &ifmr) == -1) {
59: syslog(LOG_ERR, "Error:: can`t get media for %s #%d - %s\n", csVAP,
60: errno, strerror(errno));
61: return -1;
62: }
63:
64: return (ifmr.ifm_current & IFM_IEEE80211_WDS) != 0;
65: }
66:
1.1.2.3 misho 67: static inline int
1.1.2.2 misho 68: wifi_getBSSID(int fd, const char *csVAP, uint8_t *psBSSID, int len)
69: {
70: struct ieee80211req ireq;
71:
72: FTRACE(5);
73:
74: assert(csVAP);
75: assert(psBSSID);
76:
77: memset(&ireq, 0, sizeof ireq);
78: strlcpy(ireq.i_name, csVAP, sizeof ireq.i_name);
79: ireq.i_type = IEEE80211_IOC_BSSID;
80: ireq.i_data = psBSSID;
81: ireq.i_len = len;
82: if (ioctl(fd, SIOCG80211, &ireq) == -1) {
83: syslog(LOG_ERR, "Error:: can`t get BSSID for %s #%d - %s\n", csVAP,
84: errno, strerror(errno));
85: return -1;
86: }
87:
88: return 0;
89: }
1.1.2.3 misho 90:
91: struct dwds_if *
92: wifi_buildWDS(int fd, char **ppsIF, int nIF)
93: {
94: struct dwds_if *p, *wds = NULL;
95: char szVAP[IFNAMSIZ];
96: struct ether_addr bssid;
97: register int i;
98:
99: for (i = 0; i < 128; i++) {
100: memset(szVAP, 0, IFNAMSIZ);
101: snprintf(szVAP, IFNAMSIZ, "wlan%d", i);
102: if (wifi_chkIface(szVAP, ppsIF, nIF) > 0 && wifi_isWDS(fd, szVAP) > 0) {
103: p = malloc(sizeof(struct dwds_if));
104: if (!p) {
105: syslog(LOG_ERR, "Error:: can`t allocate memory #%d - %s\n",
106: errno, strerror(errno));
107: i = -1;
108: break;
109: }
110: strlcpy(p->if_name, szVAP, IFNAMSIZ);
111: if (wifi_getBSSID(fd, szVAP, p->if_bssid, IEEE80211_ADDR_LEN) == -1) {
112: free(p);
113: i = -1;
114: break;
115: }
116: p->if_next = wds;
117: wds = p;
118:
119: memcpy(&bssid, p->if_bssid, ETHER_ADDR_LEN);
120: syslog(LOG_INFO, "BSSID:%s discover WDS vap %s\n", ether_ntoa(&bssid), szVAP);
121: }
122: }
123:
124: if (i == -1)
125: while ((p = wds)) {
126: wds = wds->if_next;
127: free(p);
128: }
129:
130: return wds;
131: }
1.1.2.5 ! misho 132:
! 133: inline void
! 134: wifi_destroyWDS(const char *csIface, struct dwds_if **wds)
! 135: {
! 136: struct dwds_if *p, **pp;
! 137:
! 138: assert(csIface);
! 139: assert(wds);
! 140:
! 141: for (pp = wds; (p = *pp); pp = &p->if_next)
! 142: if (!strncmp(p->if_name, csIface, IFNAMSIZ))
! 143: break;
! 144: if (p) {
! 145: *pp = p->if_next;
! 146: free(p);
! 147: }
! 148: }
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