91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
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#include "cw/capwap.h"
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#include "cw/mod.h"
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#include "cw/log.h"
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#include "cw/dbg.h"
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#include "cw/action.h"
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#include "mod_cisco.h"
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#include "../modload.h"
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static struct cw_actiondef actions;
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extern int cisco_register_actions_ac(struct cw_actiondef *def);
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static int register_actions(struct cw_actiondef *actions)
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{
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struct mod_ac *cmod = modload_ac("capwap");
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if (!cmod) {
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cw_log(LOG_ERR,
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"Can't initzialize mod_cisco, failed to load base mod mod_capwap");
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return 1;
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}
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cmod->register_actions(actions);
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int rc = cisco_register_actions_ac(actions);
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cw_dbg(DBG_INFO, "Initialized mod cisco with %d actions", rc);
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return 0;
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}
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static int init()
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{
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cw_dbg(DBG_INFO, "Initialiazing mod_cisco ...");
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// struct mod_ac *cmod = modload_ac("capwap");
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return 1;
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}
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static int detect(struct conn *conn, const uint8_t * rawmsg, int rawlen, int elems_len,
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struct sockaddr *from, int mode)
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{
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if (mode != MOD_DETECT_CAPWAP)
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return 0;
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int offset = cw_get_hdr_msg_offset(rawmsg);
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const uint8_t *msg_ptr = rawmsg + offset;
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const uint8_t *elems_ptr = cw_get_msg_elems_ptr(msg_ptr);
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const uint8_t *elem;
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/* To detect a Cisco AP we look for any vendor
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* specific payload Cisco identifier */
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cw_foreach_elem(elem, elems_ptr, elems_len) {
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int id = cw_get_elem_id(elem);
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if (id == CW_ELEM_VENDOR_SPECIFIC_PAYLOAD) {
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uint32_t vendor_id = cw_get_dword(cw_get_elem_data(elem));
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if (vendor_id == CW_VENDOR_ID_CISCO) {
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conn->actions = &actions;
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cw_dbg(DBG_MOD,"CISCO detected: yes");
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return 1;
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}
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}
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}
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cw_dbg(DBG_MOD,"CISCO detected: no");
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return 0;
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}
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static struct mod_ac capwap_ac = {
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.name = "cisco",
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.init = init,
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.detect = detect,
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.register_actions = register_actions
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};
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struct mod_ac *mod_cisco_ac()
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{
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return &capwap_ac;
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};
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