Move parts of wpa_cli to a new common file
[mech_eap.git] / hostapd / hostapd_cli.c
index 7faa324..c0e27de 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * hostapd - command line interface for hostapd daemon
- * Copyright (c) 2004-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
 #include <dirent.h>
 
 #include "common/wpa_ctrl.h"
+#include "common/ieee802_11_defs.h"
 #include "utils/common.h"
 #include "utils/eloop.h"
 #include "utils/edit.h"
 #include "common/version.h"
+#include "common/cli.h"
 
+#ifndef CONFIG_NO_CTRL_IFACE
 
-static const char *hostapd_cli_version =
+static const char *const hostapd_cli_version =
 "hostapd_cli v" VERSION_STR "\n"
-"Copyright (c) 2004-2014, Jouni Malinen <j@w1.fi> and contributors";
+"Copyright (c) 2004-2016, Jouni Malinen <j@w1.fi> and contributors";
 
 
-static const char *hostapd_cli_license =
+static const char *const hostapd_cli_license =
 "This software may be distributed under the terms of the BSD license.\n"
 "See README for more details.\n";
 
-static const char *hostapd_cli_full_license =
+static const char *const hostapd_cli_full_license =
 "This software may be distributed under the terms of the BSD license.\n"
 "\n"
 "Redistribution and use in source and binary forms, with or without\n"
@@ -56,38 +59,6 @@ static const char *hostapd_cli_full_license =
 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
 "\n";
 
-static const char *commands_help =
-"Commands:\n"
-"   mib                  get MIB variables (dot1x, dot11, radius)\n"
-"   sta <addr>           get MIB variables for one station\n"
-"   all_sta              get MIB variables for all stations\n"
-"   new_sta <addr>       add a new station\n"
-"   deauthenticate <addr>  deauthenticate a station\n"
-"   disassociate <addr>  disassociate a station\n"
-#ifdef CONFIG_IEEE80211W
-"   sa_query <addr>      send SA Query to a station\n"
-#endif /* CONFIG_IEEE80211W */
-#ifdef CONFIG_WPS
-"   wps_pin <uuid> <pin> [timeout] [addr]  add WPS Enrollee PIN\n"
-"   wps_check_pin <PIN>  verify PIN checksum\n"
-"   wps_pbc              indicate button pushed to initiate PBC\n"
-"   wps_cancel           cancel the pending WPS operation\n"
-#ifdef CONFIG_WPS_NFC
-"   wps_nfc_tag_read <hexdump>  report read NFC tag with WPS data\n"
-"   wps_nfc_config_token <WPS/NDEF>  build NFC configuration token\n"
-"   wps_nfc_token <WPS/NDEF/enable/disable>  manager NFC password token\n"
-#endif /* CONFIG_WPS_NFC */
-"   wps_ap_pin <cmd> [params..]  enable/disable AP PIN\n"
-"   wps_config <SSID> <auth> <encr> <key>  configure AP\n"
-"   wps_get_status       show current WPS status\n"
-#endif /* CONFIG_WPS */
-"   get_config           show current configuration\n"
-"   help                 show this usage help\n"
-"   interface [ifname]   show interfaces/select interface\n"
-"   level <debug level>  change debug level\n"
-"   license              show full hostapd_cli license\n"
-"   quit                 exit hostapd_cli\n";
-
 static struct wpa_ctrl *ctrl_conn;
 static int hostapd_cli_quit = 0;
 static int hostapd_cli_attached = 0;
@@ -96,6 +67,7 @@ static int hostapd_cli_attached = 0;
 #define CONFIG_CTRL_IFACE_DIR "/var/run/hostapd"
 #endif /* CONFIG_CTRL_IFACE_DIR */
 static const char *ctrl_iface_dir = CONFIG_CTRL_IFACE_DIR;
+static const char *client_socket_dir = NULL;
 
 static char *ctrl_ifname = NULL;
 static const char *pid_file = NULL;
@@ -103,6 +75,9 @@ static const char *action_file = NULL;
 static int ping_interval = 5;
 static int interactive = 0;
 
+static void print_help(FILE *stream, const char *cmd);
+static char ** list_cmd_list(void);
+
 
 static void usage(void)
 {
@@ -111,42 +86,81 @@ static void usage(void)
                "\n"
                "usage: hostapd_cli [-p<path>] [-i<ifname>] [-hvB] "
                "[-a<path>] \\\n"
-               "                   [-G<ping interval>] [command..]\n"
+               "                   [-P<pid file>] [-G<ping interval>] [command..]\n"
                "\n"
                "Options:\n"
                "   -h           help (show this usage text)\n"
                "   -v           shown version information\n"
                "   -p<path>     path to find control sockets (default: "
                "/var/run/hostapd)\n"
+               "   -s<dir_path> dir path to open client sockets (default: "
+               CONFIG_CTRL_IFACE_DIR ")\n"
                "   -a<file>     run in daemon mode executing the action file "
                "based on events\n"
                "                from hostapd\n"
                "   -B           run a daemon in the background\n"
                "   -i<ifname>   Interface to listen on (default: first "
                "interface found in the\n"
-               "                socket path)\n\n"
-               "%s",
-               commands_help);
+               "                socket path)\n\n");
+       print_help(stderr, NULL);
+}
+
+
+static int get_cmd_arg_num(const char *str, int pos)
+{
+       int arg = 0, i;
+
+       for (i = 0; i <= pos; i++) {
+               if (str[i] != ' ') {
+                       arg++;
+                       while (i <= pos && str[i] != ' ')
+                               i++;
+               }
+       }
+
+       if (arg > 0)
+               arg--;
+       return arg;
+}
+
+
+static int str_starts(const char *src, const char *match)
+{
+       return os_strncmp(src, match, os_strlen(match)) == 0;
 }
 
 
 static struct wpa_ctrl * hostapd_cli_open_connection(const char *ifname)
 {
+#ifndef CONFIG_CTRL_IFACE_UDP
        char *cfile;
        int flen;
+#endif /* !CONFIG_CTRL_IFACE_UDP */
 
        if (ifname == NULL)
                return NULL;
 
+#ifdef CONFIG_CTRL_IFACE_UDP
+       ctrl_conn = wpa_ctrl_open(ifname);
+       return ctrl_conn;
+#else /* CONFIG_CTRL_IFACE_UDP */
        flen = strlen(ctrl_iface_dir) + strlen(ifname) + 2;
        cfile = malloc(flen);
        if (cfile == NULL)
                return NULL;
        snprintf(cfile, flen, "%s/%s", ctrl_iface_dir, ifname);
 
-       ctrl_conn = wpa_ctrl_open(cfile);
+       if (client_socket_dir && client_socket_dir[0] &&
+           access(client_socket_dir, F_OK) < 0) {
+               perror(client_socket_dir);
+               free(cfile);
+               return NULL;
+       }
+
+       ctrl_conn = wpa_ctrl_open2(cfile, client_socket_dir);
        free(cfile);
        return ctrl_conn;
+#endif /* CONFIG_CTRL_IFACE_UDP */
 }
 
 
@@ -204,6 +218,52 @@ static inline int wpa_ctrl_command(struct wpa_ctrl *ctrl, char *cmd)
 }
 
 
+static int write_cmd(char *buf, size_t buflen, const char *cmd, int argc,
+                    char *argv[])
+{
+       int i, res;
+       char *pos, *end;
+
+       pos = buf;
+       end = buf + buflen;
+
+       res = os_snprintf(pos, end - pos, "%s", cmd);
+       if (os_snprintf_error(end - pos, res))
+               goto fail;
+       pos += res;
+
+       for (i = 0; i < argc; i++) {
+               res = os_snprintf(pos, end - pos, " %s", argv[i]);
+               if (os_snprintf_error(end - pos, res))
+                       goto fail;
+               pos += res;
+       }
+
+       buf[buflen - 1] = '\0';
+       return 0;
+
+fail:
+       printf("Too long command\n");
+       return -1;
+}
+
+
+static int hostapd_cli_cmd(struct wpa_ctrl *ctrl, const char *cmd,
+                          int min_args, int argc, char *argv[])
+{
+       char buf[4096];
+
+       if (argc < min_args) {
+               printf("Invalid %s command - at least %d argument%s required.\n",
+                      cmd, min_args, min_args > 1 ? "s are" : " is");
+               return -1;
+       }
+       if (write_cmd(buf, sizeof(buf), cmd, argc, argv) < 0)
+               return -1;
+       return wpa_ctrl_command(ctrl, buf);
+}
+
+
 static int hostapd_cli_cmd_ping(struct wpa_ctrl *ctrl, int argc, char *argv[])
 {
        return wpa_ctrl_command(ctrl, "PING");
@@ -541,7 +601,7 @@ static int hostapd_cli_cmd_wps_config(struct wpa_ctrl *ctrl, int argc,
                                      char *argv[])
 {
        char buf[256];
-       char ssid_hex[2 * 32 + 1];
+       char ssid_hex[2 * SSID_MAX_LEN + 1];
        char key_hex[2 * 64 + 1];
        int i;
 
@@ -552,7 +612,7 @@ static int hostapd_cli_cmd_wps_config(struct wpa_ctrl *ctrl, int argc,
        }
 
        ssid_hex[0] = '\0';
-       for (i = 0; i < 32; i++) {
+       for (i = 0; i < SSID_MAX_LEN; i++) {
                if (argv[0][i] == '\0')
                        break;
                os_snprintf(&ssid_hex[i * 2], 3, "%02x", argv[0][i]);
@@ -709,11 +769,26 @@ static int hostapd_cli_cmd_all_sta(struct wpa_ctrl *ctrl, int argc,
 
 static int hostapd_cli_cmd_help(struct wpa_ctrl *ctrl, int argc, char *argv[])
 {
-       printf("%s", commands_help);
+       print_help(stdout, argc > 0 ? argv[0] : NULL);
        return 0;
 }
 
 
+static char ** hostapd_cli_complete_help(const char *str, int pos)
+{
+       int arg = get_cmd_arg_num(str, pos);
+       char **res = NULL;
+
+       switch (arg) {
+       case 1:
+               res = list_cmd_list();
+               break;
+       }
+
+       return res;
+}
+
+
 static int hostapd_cli_cmd_license(struct wpa_ctrl *ctrl, int argc,
                                   char *argv[])
 {
@@ -921,6 +996,35 @@ static int hostapd_cli_cmd_get(struct wpa_ctrl *ctrl, int argc, char *argv[])
 }
 
 
+#ifdef CONFIG_FST
+static int hostapd_cli_cmd_fst(struct wpa_ctrl *ctrl, int argc, char *argv[])
+{
+       char cmd[256];
+       int res;
+       int i;
+       int total;
+
+       if (argc <= 0) {
+               printf("FST command: parameters are required.\n");
+               return -1;
+       }
+
+       total = os_snprintf(cmd, sizeof(cmd), "FST-MANAGER");
+
+       for (i = 0; i < argc; i++) {
+               res = os_snprintf(cmd + total, sizeof(cmd) - total, " %s",
+                                 argv[i]);
+               if (os_snprintf_error(sizeof(cmd) - total, res)) {
+                       printf("Too long fst command.\n");
+                       return -1;
+               }
+               total += res;
+       }
+       return wpa_ctrl_command(ctrl, cmd);
+}
+#endif /* CONFIG_FST */
+
+
 static int hostapd_cli_cmd_chan_switch(struct wpa_ctrl *ctrl,
                                       int argc, char *argv[])
 {
@@ -1002,66 +1106,268 @@ static int hostapd_cli_cmd_vendor(struct wpa_ctrl *ctrl, int argc, char *argv[])
 }
 
 
+static int hostapd_cli_cmd_erp_flush(struct wpa_ctrl *ctrl, int argc,
+                                    char *argv[])
+{
+       return wpa_ctrl_command(ctrl, "ERP_FLUSH");
+}
+
+
+static int hostapd_cli_cmd_log_level(struct wpa_ctrl *ctrl, int argc,
+                                    char *argv[])
+{
+       char cmd[256];
+       int res;
+
+       res = os_snprintf(cmd, sizeof(cmd), "LOG_LEVEL%s%s%s%s",
+                         argc >= 1 ? " " : "",
+                         argc >= 1 ? argv[0] : "",
+                         argc == 2 ? " " : "",
+                         argc == 2 ? argv[1] : "");
+       if (os_snprintf_error(sizeof(cmd), res)) {
+               printf("Too long option\n");
+               return -1;
+       }
+       return wpa_ctrl_command(ctrl, cmd);
+}
+
+
+static int hostapd_cli_cmd_raw(struct wpa_ctrl *ctrl, int argc, char *argv[])
+{
+       if (argc == 0)
+               return -1;
+       return hostapd_cli_cmd(ctrl, argv[0], 0, argc - 1, &argv[1]);
+}
+
+
+static int hostapd_cli_cmd_pmksa(struct wpa_ctrl *ctrl, int argc, char *argv[])
+{
+       return wpa_ctrl_command(ctrl, "PMKSA");
+}
+
+
+static int hostapd_cli_cmd_pmksa_flush(struct wpa_ctrl *ctrl, int argc,
+                                      char *argv[])
+{
+       return wpa_ctrl_command(ctrl, "PMKSA_FLUSH");
+}
+
+
+static int hostapd_cli_cmd_set_neighbor(struct wpa_ctrl *ctrl, int argc,
+                                       char *argv[])
+{
+       char cmd[2048];
+       int res;
+
+       if (argc < 3 || argc > 5) {
+               printf("Invalid set_neighbor command: needs 3-5 arguments\n");
+               return -1;
+       }
+
+       res = os_snprintf(cmd, sizeof(cmd), "SET_NEIGHBOR %s %s %s %s %s",
+                         argv[0], argv[1], argv[2], argc >= 4 ? argv[3] : "",
+                         argc == 5 ? argv[4] : "");
+       if (os_snprintf_error(sizeof(cmd), res)) {
+               printf("Too long SET_NEIGHBOR command.\n");
+               return -1;
+       }
+       return wpa_ctrl_command(ctrl, cmd);
+}
+
+
+static int hostapd_cli_cmd_remove_neighbor(struct wpa_ctrl *ctrl, int argc,
+                                          char *argv[])
+{
+       char cmd[400];
+       int res;
+
+       if (argc != 2) {
+               printf("Invalid remove_neighbor command: needs 2 arguments\n");
+               return -1;
+       }
+
+       res = os_snprintf(cmd, sizeof(cmd), "REMOVE_NEIGHBOR %s %s",
+                         argv[0], argv[1]);
+       if (os_snprintf_error(sizeof(cmd), res)) {
+               printf("Too long REMOVE_NEIGHBOR command.\n");
+               return -1;
+       }
+       return wpa_ctrl_command(ctrl, cmd);
+}
+
+
+static int hostapd_cli_cmd_req_lci(struct wpa_ctrl *ctrl, int argc,
+                                  char *argv[])
+{
+       char cmd[256];
+       int res;
+
+       if (argc != 1) {
+               printf("Invalid req_lci command - requires destination address\n");
+               return -1;
+       }
+
+       res = os_snprintf(cmd, sizeof(cmd), "REQ_LCI %s", argv[0]);
+       if (os_snprintf_error(sizeof(cmd), res)) {
+               printf("Too long REQ_LCI command.\n");
+               return -1;
+       }
+       return wpa_ctrl_command(ctrl, cmd);
+}
+
+
+static int hostapd_cli_cmd_req_range(struct wpa_ctrl *ctrl, int argc,
+                                    char *argv[])
+{
+       if (argc < 4) {
+               printf("Invalid req_range command: needs at least 4 arguments - dest address, randomization interval, min AP count, and 1 to 16 AP addresses\n");
+               return -1;
+       }
+
+       return hostapd_cli_cmd(ctrl, "REQ_RANGE", 4, argc, argv);
+}
+
+
+static int hostapd_cli_cmd_driver_flags(struct wpa_ctrl *ctrl, int argc,
+                                       char *argv[])
+{
+       return wpa_ctrl_command(ctrl, "DRIVER_FLAGS");
+}
+
+
 struct hostapd_cli_cmd {
        const char *cmd;
        int (*handler)(struct wpa_ctrl *ctrl, int argc, char *argv[]);
+       char ** (*completion)(const char *str, int pos);
+       const char *usage;
 };
 
-static struct hostapd_cli_cmd hostapd_cli_commands[] = {
-       { "ping", hostapd_cli_cmd_ping },
-       { "mib", hostapd_cli_cmd_mib },
-       { "relog", hostapd_cli_cmd_relog },
-       { "status", hostapd_cli_cmd_status },
-       { "sta", hostapd_cli_cmd_sta },
-       { "all_sta", hostapd_cli_cmd_all_sta },
-       { "new_sta", hostapd_cli_cmd_new_sta },
-       { "deauthenticate", hostapd_cli_cmd_deauthenticate },
-       { "disassociate", hostapd_cli_cmd_disassociate },
+static const struct hostapd_cli_cmd hostapd_cli_commands[] = {
+       { "ping", hostapd_cli_cmd_ping, NULL,
+         "= pings hostapd" },
+       { "mib", hostapd_cli_cmd_mib, NULL,
+         "= get MIB variables (dot1x, dot11, radius)" },
+       { "relog", hostapd_cli_cmd_relog, NULL, NULL },
+       { "status", hostapd_cli_cmd_status, NULL, NULL },
+       { "sta", hostapd_cli_cmd_sta, NULL,
+         "<addr> = get MIB variables for one station" },
+       { "all_sta", hostapd_cli_cmd_all_sta, NULL,
+          "= get MIB variables for all stations" },
+       { "new_sta", hostapd_cli_cmd_new_sta, NULL,
+         "<addr> = add a new station" },
+       { "deauthenticate", hostapd_cli_cmd_deauthenticate, NULL,
+         "<addr> = deauthenticate a station" },
+       { "disassociate", hostapd_cli_cmd_disassociate, NULL,
+         "<addr> = disassociate a station" },
 #ifdef CONFIG_IEEE80211W
-       { "sa_query", hostapd_cli_cmd_sa_query },
+       { "sa_query", hostapd_cli_cmd_sa_query, NULL,
+         "<addr> = send SA Query to a station" },
 #endif /* CONFIG_IEEE80211W */
 #ifdef CONFIG_WPS
-       { "wps_pin", hostapd_cli_cmd_wps_pin },
-       { "wps_check_pin", hostapd_cli_cmd_wps_check_pin },
-       { "wps_pbc", hostapd_cli_cmd_wps_pbc },
-       { "wps_cancel", hostapd_cli_cmd_wps_cancel },
+       { "wps_pin", hostapd_cli_cmd_wps_pin, NULL,
+         "<uuid> <pin> [timeout] [addr] = add WPS Enrollee PIN" },
+       { "wps_check_pin", hostapd_cli_cmd_wps_check_pin, NULL,
+         "<PIN> = verify PIN checksum" },
+       { "wps_pbc", hostapd_cli_cmd_wps_pbc, NULL,
+         "= indicate button pushed to initiate PBC" },
+       { "wps_cancel", hostapd_cli_cmd_wps_cancel, NULL,
+         "= cancel the pending WPS operation" },
 #ifdef CONFIG_WPS_NFC
-       { "wps_nfc_tag_read", hostapd_cli_cmd_wps_nfc_tag_read },
-       { "wps_nfc_config_token", hostapd_cli_cmd_wps_nfc_config_token },
-       { "wps_nfc_token", hostapd_cli_cmd_wps_nfc_token },
-       { "nfc_get_handover_sel", hostapd_cli_cmd_nfc_get_handover_sel },
+       { "wps_nfc_tag_read", hostapd_cli_cmd_wps_nfc_tag_read, NULL,
+         "<hexdump> = report read NFC tag with WPS data" },
+       { "wps_nfc_config_token", hostapd_cli_cmd_wps_nfc_config_token, NULL,
+         "<WPS/NDEF> = build NFC configuration token" },
+       { "wps_nfc_token", hostapd_cli_cmd_wps_nfc_token, NULL,
+         "<WPS/NDEF/enable/disable> = manager NFC password token" },
+       { "nfc_get_handover_sel", hostapd_cli_cmd_nfc_get_handover_sel, NULL,
+         NULL },
 #endif /* CONFIG_WPS_NFC */
-       { "wps_ap_pin", hostapd_cli_cmd_wps_ap_pin },
-       { "wps_config", hostapd_cli_cmd_wps_config },
-       { "wps_get_status", hostapd_cli_cmd_wps_get_status },
+       { "wps_ap_pin", hostapd_cli_cmd_wps_ap_pin, NULL,
+         "<cmd> [params..] = enable/disable AP PIN" },
+       { "wps_config", hostapd_cli_cmd_wps_config, NULL,
+         "<SSID> <auth> <encr> <key> = configure AP" },
+       { "wps_get_status", hostapd_cli_cmd_wps_get_status, NULL,
+         "= show current WPS status" },
 #endif /* CONFIG_WPS */
-       { "disassoc_imminent", hostapd_cli_cmd_disassoc_imminent },
-       { "ess_disassoc", hostapd_cli_cmd_ess_disassoc },
-       { "bss_tm_req", hostapd_cli_cmd_bss_tm_req },
-       { "get_config", hostapd_cli_cmd_get_config },
-       { "help", hostapd_cli_cmd_help },
-       { "interface", hostapd_cli_cmd_interface },
-       { "level", hostapd_cli_cmd_level },
-       { "license", hostapd_cli_cmd_license },
-       { "quit", hostapd_cli_cmd_quit },
-       { "set", hostapd_cli_cmd_set },
-       { "get", hostapd_cli_cmd_get },
-       { "set_qos_map_set", hostapd_cli_cmd_set_qos_map_set },
-       { "send_qos_map_conf", hostapd_cli_cmd_send_qos_map_conf },
-       { "chan_switch", hostapd_cli_cmd_chan_switch },
-       { "hs20_wnm_notif", hostapd_cli_cmd_hs20_wnm_notif },
-       { "hs20_deauth_req", hostapd_cli_cmd_hs20_deauth_req },
-       { "vendor", hostapd_cli_cmd_vendor },
-       { "enable", hostapd_cli_cmd_enable },
-       { "reload", hostapd_cli_cmd_reload },
-       { "disable", hostapd_cli_cmd_disable },
-       { NULL, NULL }
+       { "disassoc_imminent", hostapd_cli_cmd_disassoc_imminent, NULL, NULL },
+       { "ess_disassoc", hostapd_cli_cmd_ess_disassoc, NULL, NULL },
+       { "bss_tm_req", hostapd_cli_cmd_bss_tm_req, NULL, NULL },
+       { "get_config", hostapd_cli_cmd_get_config, NULL,
+         "= show current configuration" },
+       { "help", hostapd_cli_cmd_help, hostapd_cli_complete_help,
+         "= show this usage help" },
+       { "interface", hostapd_cli_cmd_interface, NULL,
+         "[ifname] = show interfaces/select interface" },
+#ifdef CONFIG_FST
+       { "fst", hostapd_cli_cmd_fst, NULL, NULL },
+#endif /* CONFIG_FST */
+       { "raw", hostapd_cli_cmd_raw, NULL, NULL },
+       { "level", hostapd_cli_cmd_level, NULL,
+         "<debug level> = change debug level" },
+       { "license", hostapd_cli_cmd_license, NULL,
+         "= show full hostapd_cli license" },
+       { "quit", hostapd_cli_cmd_quit, NULL,
+         "= exit hostapd_cli" },
+       { "set", hostapd_cli_cmd_set, NULL, NULL },
+       { "get", hostapd_cli_cmd_get, NULL, NULL },
+       { "set_qos_map_set", hostapd_cli_cmd_set_qos_map_set, NULL, NULL },
+       { "send_qos_map_conf", hostapd_cli_cmd_send_qos_map_conf, NULL, NULL },
+       { "chan_switch", hostapd_cli_cmd_chan_switch, NULL, NULL },
+       { "hs20_wnm_notif", hostapd_cli_cmd_hs20_wnm_notif, NULL, NULL },
+       { "hs20_deauth_req", hostapd_cli_cmd_hs20_deauth_req, NULL, NULL },
+       { "vendor", hostapd_cli_cmd_vendor, NULL, NULL },
+       { "enable", hostapd_cli_cmd_enable, NULL, NULL },
+       { "reload", hostapd_cli_cmd_reload, NULL, NULL },
+       { "disable", hostapd_cli_cmd_disable, NULL, NULL },
+       { "erp_flush", hostapd_cli_cmd_erp_flush, NULL, NULL },
+       { "log_level", hostapd_cli_cmd_log_level, NULL, NULL },
+       { "pmksa", hostapd_cli_cmd_pmksa, NULL, NULL },
+       { "pmksa_flush", hostapd_cli_cmd_pmksa_flush, NULL, NULL },
+       { "set_neighbor", hostapd_cli_cmd_set_neighbor, NULL, NULL },
+       { "remove_neighbor", hostapd_cli_cmd_remove_neighbor, NULL, NULL },
+       { "req_lci", hostapd_cli_cmd_req_lci, NULL, NULL },
+       { "req_range", hostapd_cli_cmd_req_range, NULL, NULL },
+       { "driver_flags", hostapd_cli_cmd_driver_flags, NULL, NULL },
+       { NULL, NULL, NULL, NULL }
 };
 
 
+/*
+ * Prints command usage, lines are padded with the specified string.
+ */
+static void print_cmd_help(FILE *stream, const struct hostapd_cli_cmd *cmd,
+                          const char *pad)
+{
+       char c;
+       size_t n;
+
+       if (cmd->usage == NULL)
+               return;
+       fprintf(stream, "%s%s ", pad, cmd->cmd);
+       for (n = 0; (c = cmd->usage[n]); n++) {
+               fprintf(stream, "%c", c);
+               if (c == '\n')
+                       fprintf(stream, "%s", pad);
+       }
+       fprintf(stream, "\n");
+}
+
+
+static void print_help(FILE *stream, const char *cmd)
+{
+       int n;
+
+       fprintf(stream, "commands:\n");
+       for (n = 0; hostapd_cli_commands[n].cmd; n++) {
+               if (cmd == NULL || str_starts(hostapd_cli_commands[n].cmd, cmd))
+                       print_cmd_help(stream, &hostapd_cli_commands[n], "  ");
+       }
+}
+
+
 static void wpa_request(struct wpa_ctrl *ctrl, int argc, char *argv[])
 {
-       struct hostapd_cli_cmd *cmd, *match = NULL;
+       const struct hostapd_cli_cmd *cmd, *match = NULL;
        int count;
 
        count = 0;
@@ -1203,13 +1509,77 @@ static void hostapd_cli_edit_eof_cb(void *ctx)
 }
 
 
+static char ** list_cmd_list(void)
+{
+       char **res;
+       int i, count;
+
+       count = ARRAY_SIZE(hostapd_cli_commands);
+       res = os_calloc(count + 1, sizeof(char *));
+       if (res == NULL)
+               return NULL;
+
+       for (i = 0; hostapd_cli_commands[i].cmd; i++) {
+               res[i] = os_strdup(hostapd_cli_commands[i].cmd);
+               if (res[i] == NULL)
+                       break;
+       }
+
+       return res;
+}
+
+
+static char ** hostapd_cli_cmd_completion(const char *cmd, const char *str,
+                                     int pos)
+{
+       int i;
+
+       for (i = 0; hostapd_cli_commands[i].cmd; i++) {
+               if (os_strcasecmp(hostapd_cli_commands[i].cmd, cmd) != 0)
+                       continue;
+               if (hostapd_cli_commands[i].completion)
+                       return hostapd_cli_commands[i].completion(str, pos);
+               if (!hostapd_cli_commands[i].usage)
+                       return NULL;
+               edit_clear_line();
+               printf("\r%s\n", hostapd_cli_commands[i].usage);
+               edit_redraw();
+               break;
+       }
+
+       return NULL;
+}
+
+
+static char ** hostapd_cli_edit_completion_cb(void *ctx, const char *str,
+                                             int pos)
+{
+       char **res;
+       const char *end;
+       char *cmd;
+
+       end = os_strchr(str, ' ');
+       if (end == NULL || str + pos < end)
+               return list_cmd_list();
+
+       cmd = os_malloc(pos + 1);
+       if (cmd == NULL)
+               return NULL;
+       os_memcpy(cmd, str, pos);
+       cmd[end - str] = '\0';
+       res = hostapd_cli_cmd_completion(cmd, str, pos);
+       os_free(cmd);
+       return res;
+}
+
+
 static void hostapd_cli_interactive(void)
 {
        printf("\nInteractive mode\n\n");
 
        eloop_register_signal_terminate(hostapd_cli_eloop_terminate, NULL);
        edit_init(hostapd_cli_edit_cmd_cb, hostapd_cli_edit_eof_cb,
-                 NULL, NULL, NULL, NULL);
+                 hostapd_cli_edit_completion_cb, NULL, NULL, NULL);
        eloop_register_timeout(ping_interval, 0, hostapd_cli_ping, NULL, NULL);
 
        eloop_run();
@@ -1276,7 +1646,7 @@ int main(int argc, char *argv[])
                return -1;
 
        for (;;) {
-               c = getopt(argc, argv, "a:BhG:i:p:v");
+               c = getopt(argc, argv, "a:BhG:i:p:P:s:v");
                if (c < 0)
                        break;
                switch (c) {
@@ -1302,6 +1672,12 @@ int main(int argc, char *argv[])
                case 'p':
                        ctrl_iface_dir = optarg;
                        break;
+               case 'P':
+                       pid_file = optarg;
+                       break;
+               case 's':
+                       client_socket_dir = optarg;
+                       break;
                default:
                        usage();
                        return -1;
@@ -1367,7 +1743,7 @@ int main(int argc, char *argv[])
                }
        }
 
-       if (daemonize && os_daemonize(pid_file))
+       if (daemonize && os_daemonize(pid_file) && eloop_sock_requeue())
                return -1;
 
        if (interactive)
@@ -1382,3 +1758,12 @@ int main(int argc, char *argv[])
        hostapd_cli_cleanup();
        return 0;
 }
+
+#else /* CONFIG_NO_CTRL_IFACE */
+
+int main(int argc, char *argv[])
+{
+       return -1;
+}
+
+#endif /* CONFIG_NO_CTRL_IFACE */