WPS ER: Move SSDP functionality into a separate file
This commit is contained in:
Jouni Malinen
parent
d6211fbb2e
commit
ec72bd0c77
4 changed files with 284 additions and 245 deletions
251
src/wps/wps_er.c
251
src/wps/wps_er.c
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@ -25,89 +25,11 @@
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#include "wps_i.h"
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#include "wps_upnp.h"
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#include "wps_upnp_i.h"
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#include "wps_er.h"
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/* TODO:
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* send notification of new AP device with wpa_msg
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* re-send notifications with wpa_msg if ER re-started (to update wpa_gui-qt4)
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* (also re-send SSDP M-SEARCH in this case to find new APs)
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* parse UPnP event messages
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*/
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static void wps_er_ap_timeout(void *eloop_data, void *user_ctx);
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static void wps_er_sta_timeout(void *eloop_data, void *user_ctx);
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struct wps_er_sta {
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struct wps_er_sta *next;
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struct wps_er_ap *ap;
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u8 addr[ETH_ALEN];
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u16 config_methods;
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u8 uuid[WPS_UUID_LEN];
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u8 pri_dev_type[8];
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u16 dev_passwd_id;
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int m1_received;
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char *manufacturer;
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char *model_name;
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char *model_number;
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char *serial_number;
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char *dev_name;
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struct wps_data *wps;
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struct http_client *http;
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};
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struct wps_er_ap {
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struct wps_er_ap *next;
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struct wps_er *er;
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struct wps_er_sta *sta; /* list of STAs/Enrollees using this AP */
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struct in_addr addr;
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char *location;
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struct http_client *http;
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struct wps_data *wps;
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u8 uuid[WPS_UUID_LEN];
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u8 pri_dev_type[8];
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u8 wps_state;
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u8 mac_addr[ETH_ALEN];
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char *friendly_name;
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char *manufacturer;
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char *manufacturer_url;
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char *model_description;
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char *model_name;
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char *model_number;
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char *model_url;
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char *serial_number;
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char *udn;
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char *upc;
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char *scpd_url;
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char *control_url;
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char *event_sub_url;
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int subscribed;
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unsigned int id;
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struct wps_credential *ap_settings;
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void (*m1_handler)(struct wps_er_ap *ap, struct wpabuf *m1);
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};
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struct wps_er {
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struct wps_context *wps;
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char ifname[17];
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char *mac_addr_text; /* mac addr of network i.f. we use */
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u8 mac_addr[ETH_ALEN]; /* mac addr of network i.f. we use */
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char *ip_addr_text; /* IP address of network i.f. we use */
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unsigned ip_addr; /* IP address of network i.f. we use (host order) */
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int multicast_sd;
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int ssdp_sd;
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struct wps_er_ap *ap;
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struct http_server *http_srv;
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int http_port;
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unsigned int next_ap_id;
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};
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static void wps_er_ap_process(struct wps_er_ap *ap, struct wpabuf *msg);
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static int wps_er_send_get_device_info(struct wps_er_ap *ap,
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void (*m1_handler)(struct wps_er_ap *ap,
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@ -502,9 +424,8 @@ static void wps_er_http_dev_desc_cb(void *ctx, struct http_client *c,
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}
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static void wps_er_ap_add(struct wps_er *er, const u8 *uuid,
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struct in_addr *addr,
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const char *location, int max_age)
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void wps_er_ap_add(struct wps_er *er, const u8 *uuid, struct in_addr *addr,
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const char *location, int max_age)
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{
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struct wps_er_ap *ap;
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@ -542,7 +463,7 @@ static void wps_er_ap_add(struct wps_er *er, const u8 *uuid,
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}
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static void wps_er_ap_remove(struct wps_er *er, struct in_addr *addr)
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void wps_er_ap_remove(struct wps_er *er, struct in_addr *addr)
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{
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struct wps_er_ap *prev = NULL, *ap = er->ap;
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@ -576,138 +497,6 @@ static void wps_er_ap_remove_all(struct wps_er *er)
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}
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static void wps_er_ssdp_rx(int sd, void *eloop_ctx, void *sock_ctx)
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{
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struct wps_er *er = eloop_ctx;
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struct sockaddr_in addr; /* client address */
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socklen_t addr_len;
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int nread;
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char buf[MULTICAST_MAX_READ], *pos, *pos2, *start;
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int wfa = 0, byebye = 0;
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int max_age = -1;
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char *location = NULL;
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u8 uuid[WPS_UUID_LEN];
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addr_len = sizeof(addr);
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nread = recvfrom(sd, buf, sizeof(buf) - 1, 0,
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(struct sockaddr *) &addr, &addr_len);
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if (nread <= 0)
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return;
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buf[nread] = '\0';
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wpa_printf(MSG_DEBUG, "WPS ER: Received SSDP from %s",
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inet_ntoa(addr.sin_addr));
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wpa_hexdump_ascii(MSG_MSGDUMP, "WPS ER: Received SSDP contents",
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(u8 *) buf, nread);
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if (sd == er->multicast_sd) {
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/* Reply to M-SEARCH */
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if (os_strncmp(buf, "HTTP/1.1 200 OK", 15) != 0)
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return; /* unexpected response header */
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} else {
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/* Unsolicited message (likely NOTIFY or M-SEARCH) */
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if (os_strncmp(buf, "NOTIFY ", 7) != 0)
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return; /* only process notifications */
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}
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os_memset(uuid, 0, sizeof(uuid));
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for (start = buf; start && *start; start = pos) {
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pos = os_strchr(start, '\n');
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if (pos) {
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if (pos[-1] == '\r')
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pos[-1] = '\0';
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*pos++ = '\0';
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}
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if (os_strstr(start, "schemas-wifialliance-org:device:"
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"WFADevice:1"))
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wfa = 1;
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if (os_strstr(start, "schemas-wifialliance-org:service:"
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"WFAWLANConfig:1"))
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wfa = 1;
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if (os_strncasecmp(start, "LOCATION:", 9) == 0) {
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start += 9;
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while (*start == ' ')
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start++;
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location = start;
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} else if (os_strncasecmp(start, "NTS:", 4) == 0) {
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if (os_strstr(start, "ssdp:byebye"))
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byebye = 1;
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} else if (os_strncasecmp(start, "CACHE-CONTROL:", 14) == 0) {
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start += 9;
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while (*start == ' ')
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start++;
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pos2 = os_strstr(start, "max-age=");
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if (pos2 == NULL)
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continue;
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pos2 += 8;
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max_age = atoi(pos2);
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} else if (os_strncasecmp(start, "USN:", 4) == 0) {
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start += 4;
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pos2 = os_strstr(start, "uuid:");
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if (pos2) {
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pos2 += 5;
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while (*pos2 == ' ')
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pos2++;
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uuid_str2bin(pos2, uuid);
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}
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}
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}
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if (!wfa)
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return; /* Not WPS advertisement/reply */
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if (byebye) {
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wps_er_ap_remove(er, &addr.sin_addr);
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return;
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}
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if (!location)
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return; /* Unknown location */
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if (max_age < 1)
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return; /* No max-age reported */
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wpa_printf(MSG_DEBUG, "WPS ER: AP discovered: %s "
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"(packet source: %s max-age: %d)",
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location, inet_ntoa(addr.sin_addr), max_age);
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wps_er_ap_add(er, uuid, &addr.sin_addr, location, max_age);
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}
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static void wps_er_send_ssdp_msearch(struct wps_er *er)
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{
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struct wpabuf *msg;
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struct sockaddr_in dest;
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msg = wpabuf_alloc(500);
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if (msg == NULL)
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return;
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wpabuf_put_str(msg,
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"M-SEARCH * HTTP/1.1\r\n"
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"HOST: 239.255.255.250:1900\r\n"
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"MAN: \"ssdp:discover\"\r\n"
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"MX: 3\r\n"
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"ST: urn:schemas-wifialliance-org:device:WFADevice:1"
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"\r\n"
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"\r\n");
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os_memset(&dest, 0, sizeof(dest));
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dest.sin_family = AF_INET;
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dest.sin_addr.s_addr = inet_addr(UPNP_MULTICAST_ADDRESS);
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dest.sin_port = htons(UPNP_MULTICAST_PORT);
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if (sendto(er->multicast_sd, wpabuf_head(msg), wpabuf_len(msg), 0,
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(struct sockaddr *) &dest, sizeof(dest)) < 0)
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wpa_printf(MSG_DEBUG, "WPS ER: M-SEARCH sendto failed: "
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"%d (%s)", errno, strerror(errno));
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wpabuf_free(msg);
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}
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static void http_put_date(struct wpabuf *buf)
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{
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wpabuf_put_str(buf, "Date: ");
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@ -1261,26 +1050,7 @@ wps_er_init(struct wps_context *wps, const char *ifname)
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return NULL;
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}
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if (add_ssdp_network(ifname)) {
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wps_er_deinit(er);
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return NULL;
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}
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er->multicast_sd = ssdp_open_multicast_sock(er->ip_addr);
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if (er->multicast_sd < 0) {
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wps_er_deinit(er);
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return NULL;
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}
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er->ssdp_sd = ssdp_listener_open();
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if (er->ssdp_sd < 0) {
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wps_er_deinit(er);
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return NULL;
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}
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if (eloop_register_sock(er->multicast_sd, EVENT_TYPE_READ,
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wps_er_ssdp_rx, er, NULL) ||
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eloop_register_sock(er->ssdp_sd, EVENT_TYPE_READ,
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wps_er_ssdp_rx, er, NULL)) {
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if (wps_er_ssdp_init(er) < 0) {
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wps_er_deinit(er);
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return NULL;
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}
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@ -1297,8 +1067,6 @@ wps_er_init(struct wps_context *wps, const char *ifname)
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"mac_addr=%s)",
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er->ifname, er->ip_addr_text, er->mac_addr_text);
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wps_er_send_ssdp_msearch(er);
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return er;
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}
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@ -1324,14 +1092,7 @@ void wps_er_deinit(struct wps_er *er)
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return;
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http_server_deinit(er->http_srv);
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wps_er_ap_remove_all(er);
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if (er->multicast_sd >= 0) {
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eloop_unregister_sock(er->multicast_sd, EVENT_TYPE_READ);
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close(er->multicast_sd);
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}
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if (er->ssdp_sd >= 0) {
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eloop_unregister_sock(er->ssdp_sd, EVENT_TYPE_READ);
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close(er->ssdp_sd);
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}
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wps_er_ssdp_deinit(er);
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os_free(er->ip_addr_text);
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os_free(er->mac_addr_text);
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os_free(er);
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84
src/wps/wps_er.h
Normal file
84
src/wps/wps_er.h
Normal file
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@ -0,0 +1,84 @@
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#ifndef WPS_ER_H
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#define WPS_ER_H
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struct wps_er_sta {
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struct wps_er_sta *next;
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struct wps_er_ap *ap;
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u8 addr[ETH_ALEN];
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u16 config_methods;
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u8 uuid[WPS_UUID_LEN];
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u8 pri_dev_type[8];
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u16 dev_passwd_id;
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int m1_received;
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char *manufacturer;
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char *model_name;
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char *model_number;
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char *serial_number;
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char *dev_name;
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struct wps_data *wps;
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struct http_client *http;
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};
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struct wps_er_ap {
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struct wps_er_ap *next;
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struct wps_er *er;
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struct wps_er_sta *sta; /* list of STAs/Enrollees using this AP */
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struct in_addr addr;
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char *location;
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struct http_client *http;
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struct wps_data *wps;
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u8 uuid[WPS_UUID_LEN];
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u8 pri_dev_type[8];
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u8 wps_state;
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u8 mac_addr[ETH_ALEN];
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char *friendly_name;
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char *manufacturer;
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char *manufacturer_url;
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char *model_description;
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char *model_name;
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char *model_number;
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char *model_url;
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char *serial_number;
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char *udn;
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char *upc;
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char *scpd_url;
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char *control_url;
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char *event_sub_url;
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int subscribed;
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unsigned int id;
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struct wps_credential *ap_settings;
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void (*m1_handler)(struct wps_er_ap *ap, struct wpabuf *m1);
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};
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struct wps_er {
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struct wps_context *wps;
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char ifname[17];
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char *mac_addr_text; /* mac addr of network i.f. we use */
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u8 mac_addr[ETH_ALEN]; /* mac addr of network i.f. we use */
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char *ip_addr_text; /* IP address of network i.f. we use */
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unsigned ip_addr; /* IP address of network i.f. we use (host order) */
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int multicast_sd;
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int ssdp_sd;
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struct wps_er_ap *ap;
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struct http_server *http_srv;
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int http_port;
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unsigned int next_ap_id;
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};
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/* wps_er.c */
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void wps_er_ap_add(struct wps_er *er, const u8 *uuid, struct in_addr *addr,
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const char *location, int max_age);
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void wps_er_ap_remove(struct wps_er *er, struct in_addr *addr);
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/* wps_er_ssdp.c */
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int wps_er_ssdp_init(struct wps_er *er);
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void wps_er_ssdp_deinit(struct wps_er *er);
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void wps_er_send_ssdp_msearch(struct wps_er *er);
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#endif /* WPS_ER_H */
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193
src/wps/wps_er_ssdp.c
Normal file
193
src/wps/wps_er_ssdp.c
Normal file
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@ -0,0 +1,193 @@
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/*
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* Wi-Fi Protected Setup - External Registrar (SSDP)
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* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "uuid.h"
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#include "eloop.h"
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#include "wps_i.h"
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#include "wps_upnp.h"
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#include "wps_upnp_i.h"
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#include "wps_er.h"
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static void wps_er_ssdp_rx(int sd, void *eloop_ctx, void *sock_ctx)
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{
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struct wps_er *er = eloop_ctx;
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struct sockaddr_in addr; /* client address */
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socklen_t addr_len;
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int nread;
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char buf[MULTICAST_MAX_READ], *pos, *pos2, *start;
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int wfa = 0, byebye = 0;
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int max_age = -1;
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char *location = NULL;
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u8 uuid[WPS_UUID_LEN];
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addr_len = sizeof(addr);
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nread = recvfrom(sd, buf, sizeof(buf) - 1, 0,
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(struct sockaddr *) &addr, &addr_len);
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if (nread <= 0)
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return;
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buf[nread] = '\0';
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wpa_printf(MSG_DEBUG, "WPS ER: Received SSDP from %s",
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inet_ntoa(addr.sin_addr));
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wpa_hexdump_ascii(MSG_MSGDUMP, "WPS ER: Received SSDP contents",
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(u8 *) buf, nread);
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if (sd == er->multicast_sd) {
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/* Reply to M-SEARCH */
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if (os_strncmp(buf, "HTTP/1.1 200 OK", 15) != 0)
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return; /* unexpected response header */
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} else {
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/* Unsolicited message (likely NOTIFY or M-SEARCH) */
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if (os_strncmp(buf, "NOTIFY ", 7) != 0)
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return; /* only process notifications */
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}
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|
||||
os_memset(uuid, 0, sizeof(uuid));
|
||||
|
||||
for (start = buf; start && *start; start = pos) {
|
||||
pos = os_strchr(start, '\n');
|
||||
if (pos) {
|
||||
if (pos[-1] == '\r')
|
||||
pos[-1] = '\0';
|
||||
*pos++ = '\0';
|
||||
}
|
||||
if (os_strstr(start, "schemas-wifialliance-org:device:"
|
||||
"WFADevice:1"))
|
||||
wfa = 1;
|
||||
if (os_strstr(start, "schemas-wifialliance-org:service:"
|
||||
"WFAWLANConfig:1"))
|
||||
wfa = 1;
|
||||
if (os_strncasecmp(start, "LOCATION:", 9) == 0) {
|
||||
start += 9;
|
||||
while (*start == ' ')
|
||||
start++;
|
||||
location = start;
|
||||
} else if (os_strncasecmp(start, "NTS:", 4) == 0) {
|
||||
if (os_strstr(start, "ssdp:byebye"))
|
||||
byebye = 1;
|
||||
} else if (os_strncasecmp(start, "CACHE-CONTROL:", 14) == 0) {
|
||||
start += 9;
|
||||
while (*start == ' ')
|
||||
start++;
|
||||
pos2 = os_strstr(start, "max-age=");
|
||||
if (pos2 == NULL)
|
||||
continue;
|
||||
pos2 += 8;
|
||||
max_age = atoi(pos2);
|
||||
} else if (os_strncasecmp(start, "USN:", 4) == 0) {
|
||||
start += 4;
|
||||
pos2 = os_strstr(start, "uuid:");
|
||||
if (pos2) {
|
||||
pos2 += 5;
|
||||
while (*pos2 == ' ')
|
||||
pos2++;
|
||||
uuid_str2bin(pos2, uuid);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!wfa)
|
||||
return; /* Not WPS advertisement/reply */
|
||||
|
||||
if (byebye) {
|
||||
wps_er_ap_remove(er, &addr.sin_addr);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!location)
|
||||
return; /* Unknown location */
|
||||
|
||||
if (max_age < 1)
|
||||
return; /* No max-age reported */
|
||||
|
||||
wpa_printf(MSG_DEBUG, "WPS ER: AP discovered: %s "
|
||||
"(packet source: %s max-age: %d)",
|
||||
location, inet_ntoa(addr.sin_addr), max_age);
|
||||
|
||||
wps_er_ap_add(er, uuid, &addr.sin_addr, location, max_age);
|
||||
}
|
||||
|
||||
|
||||
void wps_er_send_ssdp_msearch(struct wps_er *er)
|
||||
{
|
||||
struct wpabuf *msg;
|
||||
struct sockaddr_in dest;
|
||||
|
||||
msg = wpabuf_alloc(500);
|
||||
if (msg == NULL)
|
||||
return;
|
||||
|
||||
wpabuf_put_str(msg,
|
||||
"M-SEARCH * HTTP/1.1\r\n"
|
||||
"HOST: 239.255.255.250:1900\r\n"
|
||||
"MAN: \"ssdp:discover\"\r\n"
|
||||
"MX: 3\r\n"
|
||||
"ST: urn:schemas-wifialliance-org:device:WFADevice:1"
|
||||
"\r\n"
|
||||
"\r\n");
|
||||
|
||||
os_memset(&dest, 0, sizeof(dest));
|
||||
dest.sin_family = AF_INET;
|
||||
dest.sin_addr.s_addr = inet_addr(UPNP_MULTICAST_ADDRESS);
|
||||
dest.sin_port = htons(UPNP_MULTICAST_PORT);
|
||||
|
||||
if (sendto(er->multicast_sd, wpabuf_head(msg), wpabuf_len(msg), 0,
|
||||
(struct sockaddr *) &dest, sizeof(dest)) < 0)
|
||||
wpa_printf(MSG_DEBUG, "WPS ER: M-SEARCH sendto failed: "
|
||||
"%d (%s)", errno, strerror(errno));
|
||||
|
||||
wpabuf_free(msg);
|
||||
}
|
||||
|
||||
|
||||
int wps_er_ssdp_init(struct wps_er *er)
|
||||
{
|
||||
if (add_ssdp_network(er->ifname))
|
||||
return -1;
|
||||
|
||||
er->multicast_sd = ssdp_open_multicast_sock(er->ip_addr);
|
||||
if (er->multicast_sd < 0)
|
||||
return -1;
|
||||
|
||||
er->ssdp_sd = ssdp_listener_open();
|
||||
if (er->ssdp_sd < 0)
|
||||
return -1;
|
||||
|
||||
if (eloop_register_sock(er->multicast_sd, EVENT_TYPE_READ,
|
||||
wps_er_ssdp_rx, er, NULL) ||
|
||||
eloop_register_sock(er->ssdp_sd, EVENT_TYPE_READ,
|
||||
wps_er_ssdp_rx, er, NULL))
|
||||
return -1;
|
||||
|
||||
wps_er_send_ssdp_msearch(er);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
void wps_er_ssdp_deinit(struct wps_er *er)
|
||||
{
|
||||
if (er->multicast_sd >= 0) {
|
||||
eloop_unregister_sock(er->multicast_sd, EVENT_TYPE_READ);
|
||||
close(er->multicast_sd);
|
||||
}
|
||||
if (er->ssdp_sd >= 0) {
|
||||
eloop_unregister_sock(er->ssdp_sd, EVENT_TYPE_READ);
|
||||
close(er->ssdp_sd);
|
||||
}
|
||||
}
|
||||
|
|
@ -501,6 +501,7 @@ ifdef CONFIG_WPS_ER
|
|||
CONFIG_WPS_UPNP=y
|
||||
CFLAGS += -DCONFIG_WPS_ER
|
||||
OBJS += ../src/wps/wps_er.o
|
||||
OBJS += ../src/wps/wps_er_ssdp.o
|
||||
endif
|
||||
|
||||
ifdef CONFIG_WPS_UPNP
|
||||
|
|
|
|||
Loading…
Reference in a new issue