1 /*
2 * Hostapd / Zephyr socket pair -based control interface
3 * Copyright (c) 2022, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2024, NXP
5 *
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
8 */
9
10 #include "ctrl_iface_zephyr.h"
11
hostapd_ctrl_iface_receive(int sock,void * eloop_ctx,void * sock_ctx)12 void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
13 void *sock_ctx)
14 {
15 struct hostapd_data *hapd = eloop_ctx;
16 char buf[MAX_CTRL_MSG_LEN + 1];
17 char *pos;
18 int res;
19 char *reply = NULL;
20 int reply_len = 0;
21 const int reply_size = MAX_CTRL_MSG_LEN;
22
23 res = recv(sock, buf, MAX_CTRL_MSG_LEN, 0);
24 if (res < 0) {
25 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
26 strerror(errno));
27 return;
28 }
29
30 if (!res) {
31 eloop_unregister_sock(sock, EVENT_TYPE_READ);
32 wpa_printf(MSG_DEBUG, "ctrl_iface: Peer unexpectedly shut down "
33 "socket");
34 return;
35 }
36
37 if ((size_t) res > MAX_CTRL_MSG_LEN) {
38 wpa_printf(MSG_ERROR, "recvform(ctrl_iface): input truncated");
39 return;
40 }
41 buf[res] = '\0';
42
43 pos = buf;
44 while (*pos == ' ')
45 pos++;
46
47 reply = os_malloc(reply_size);
48 if (reply == NULL) {
49 send(sock, "FAIL\n", 5, 0);
50 wpa_printf(MSG_ERROR, "hostapd cli malloc fail for reply buffer");
51 return;
52 }
53
54 reply_len = hostapd_ctrl_iface_receive_process(hapd, pos, reply, reply_size, NULL, 0);
55 if (reply_len > 0) {
56 send(sock, reply, reply_len, 0);
57 } else if (reply_len == 0) {
58 send(sock, "OK\n", 3, 0);
59 } else if (reply_len < 0) {
60 send(sock, "FAIL\n", 5, 0);
61 }
62 os_free(reply);
63 }
64
