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Clean up hostapd_config_fill() parsers

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Some of the parsing code was using a bit too complex design and could be
simplified after the earlier return-on-error cleanups.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-03-11 22:55:39 +02:00 committed by Jouni Malinen
parent b2e32cde83
commit b4c26ef997
1 changed files with 45 additions and 49 deletions
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50
hostapd/config_file.c
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@ -1884,10 +1884,9 @@ static int hostapd_config_fill(struct hostapd_config *conf,
wpa_printf(MSG_ERROR, "Line %d: invalid SSID '%s'", wpa_printf(MSG_ERROR, "Line %d: invalid SSID '%s'",
line, pos); line, pos);
return 1; return 1;
} else { }
os_memcpy(bss->ssid.ssid, pos, bss->ssid.ssid_len); os_memcpy(bss->ssid.ssid, pos, bss->ssid.ssid_len);
bss->ssid.ssid_set = 1; bss->ssid.ssid_set = 1;
}
} else if (os_strcmp(buf, "ssid2") == 0) { } else if (os_strcmp(buf, "ssid2") == 0) {
size_t slen; size_t slen;
char *str = wpa_config_parse_string(pos, &slen); char *str = wpa_config_parse_string(pos, &slen);
@ -1952,9 +1951,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,
"Line %d: invalid EAPOL version (%d): '%s'.", "Line %d: invalid EAPOL version (%d): '%s'.",
line, bss->eapol_version, pos); line, bss->eapol_version, pos);
return 1; return 1;
} else }
wpa_printf(MSG_DEBUG, "eapol_version=%d", wpa_printf(MSG_DEBUG, "eapol_version=%d", bss->eapol_version);
bss->eapol_version);
#ifdef EAP_SERVER #ifdef EAP_SERVER
} else if (os_strcmp(buf, "eap_authenticator") == 0) { } else if (os_strcmp(buf, "eap_authenticator") == 0) {
bss->eap_server = atoi(pos); bss->eap_server = atoi(pos);
@ -2006,15 +2004,17 @@ static int hostapd_config_fill(struct hostapd_config *conf,
wpa_printf(MSG_ERROR, "Line %d: Invalid eap_fast_a_id", wpa_printf(MSG_ERROR, "Line %d: Invalid eap_fast_a_id",
line); line);
return 1; return 1;
} else { }
os_free(bss->eap_fast_a_id); os_free(bss->eap_fast_a_id);
bss->eap_fast_a_id = os_malloc(idlen / 2); bss->eap_fast_a_id = os_malloc(idlen / 2);
if (bss->eap_fast_a_id == NULL || if (bss->eap_fast_a_id == NULL ||
hexstr2bin(pos, bss->eap_fast_a_id, idlen / 2)) { hexstr2bin(pos, bss->eap_fast_a_id, idlen / 2)) {
wpa_printf(MSG_ERROR, "Line %d: Failed to parse eap_fast_a_id", wpa_printf(MSG_ERROR, "Line %d: Failed to parse eap_fast_a_id",
line); line);
os_free(bss->eap_fast_a_id);
bss->eap_fast_a_id = NULL;
return 1; return 1;
} else } else {
bss->eap_fast_a_id_len = idlen / 2; bss->eap_fast_a_id_len = idlen / 2;
} }
} else if (os_strcmp(buf, "eap_fast_a_id_info") == 0) { } else if (os_strcmp(buf, "eap_fast_a_id_info") == 0) {
@ -2240,7 +2240,7 @@ static int hostapd_config_fill(struct hostapd_config *conf,
wpa_printf(MSG_ERROR, "Line %d: invalid WPA passphrase length %d (expected 8..63)", wpa_printf(MSG_ERROR, "Line %d: invalid WPA passphrase length %d (expected 8..63)",
line, len); line, len);
return 1; return 1;
} else { }
os_free(bss->ssid.wpa_passphrase); os_free(bss->ssid.wpa_passphrase);
bss->ssid.wpa_passphrase = os_strdup(pos); bss->ssid.wpa_passphrase = os_strdup(pos);
if (bss->ssid.wpa_passphrase) { if (bss->ssid.wpa_passphrase) {
@ -2248,23 +2248,23 @@ static int hostapd_config_fill(struct hostapd_config *conf,
bss->ssid.wpa_psk = NULL; bss->ssid.wpa_psk = NULL;
bss->ssid.wpa_passphrase_set = 1; bss->ssid.wpa_passphrase_set = 1;
} }
}
} else if (os_strcmp(buf, "wpa_psk") == 0) { } else if (os_strcmp(buf, "wpa_psk") == 0) {
os_free(bss->ssid.wpa_psk); os_free(bss->ssid.wpa_psk);
bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
if (bss->ssid.wpa_psk == NULL) if (bss->ssid.wpa_psk == NULL)
return 1; return 1;
else if (hexstr2bin(pos, bss->ssid.wpa_psk->psk, PMK_LEN) || if (hexstr2bin(pos, bss->ssid.wpa_psk->psk, PMK_LEN) ||
pos[PMK_LEN * 2] != '\0') { pos[PMK_LEN * 2] != '\0') {
wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.", wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
line, pos); line, pos);
os_free(bss->ssid.wpa_psk);
bss->ssid.wpa_psk = NULL;
return 1; return 1;
} else { }
bss->ssid.wpa_psk->group = 1; bss->ssid.wpa_psk->group = 1;
os_free(bss->ssid.wpa_passphrase); os_free(bss->ssid.wpa_passphrase);
bss->ssid.wpa_passphrase = NULL; bss->ssid.wpa_passphrase = NULL;
bss->ssid.wpa_psk_set = 1; bss->ssid.wpa_psk_set = 1;
}
} else if (os_strcmp(buf, "wpa_psk_file") == 0) { } else if (os_strcmp(buf, "wpa_psk_file") == 0) {
os_free(bss->ssid.wpa_psk_file); os_free(bss->ssid.wpa_psk_file);
bss->ssid.wpa_psk_file = os_strdup(pos); bss->ssid.wpa_psk_file = os_strdup(pos);
@ -2291,9 +2291,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,
bss->wpa_pairwise = hostapd_config_parse_cipher(line, pos); bss->wpa_pairwise = hostapd_config_parse_cipher(line, pos);
if (bss->wpa_pairwise == -1 || bss->wpa_pairwise == 0) if (bss->wpa_pairwise == -1 || bss->wpa_pairwise == 0)
return 1; return 1;
else if (bss->wpa_pairwise & if (bss->wpa_pairwise &
(WPA_CIPHER_NONE | WPA_CIPHER_WEP40 | (WPA_CIPHER_NONE | WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)) {
WPA_CIPHER_WEP104)) {
wpa_printf(MSG_ERROR, "Line %d: unsupported pairwise cipher suite '%s'", wpa_printf(MSG_ERROR, "Line %d: unsupported pairwise cipher suite '%s'",
bss->wpa_pairwise, pos); bss->wpa_pairwise, pos);
return 1; return 1;
@ -2302,9 +2301,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,
bss->rsn_pairwise = hostapd_config_parse_cipher(line, pos); bss->rsn_pairwise = hostapd_config_parse_cipher(line, pos);
if (bss->rsn_pairwise == -1 || bss->rsn_pairwise == 0) if (bss->rsn_pairwise == -1 || bss->rsn_pairwise == 0)
return 1; return 1;
else if (bss->rsn_pairwise & if (bss->rsn_pairwise &
(WPA_CIPHER_NONE | WPA_CIPHER_WEP40 | (WPA_CIPHER_NONE | WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)) {
WPA_CIPHER_WEP104)) {
wpa_printf(MSG_ERROR, "Line %d: unsupported pairwise cipher suite '%s'", wpa_printf(MSG_ERROR, "Line %d: unsupported pairwise cipher suite '%s'",
bss->rsn_pairwise, pos); bss->rsn_pairwise, pos);
return 1; return 1;
@ -2461,7 +2459,7 @@ static int hostapd_config_fill(struct hostapd_config *conf,
wpa_printf(MSG_ERROR, "Line %d: invalid beacon_int %d (expected 15..65535)", wpa_printf(MSG_ERROR, "Line %d: invalid beacon_int %d (expected 15..65535)",
line, val); line, val);
return 1; return 1;
} else }
conf->beacon_int = val; conf->beacon_int = val;
#ifdef CONFIG_ACS #ifdef CONFIG_ACS
} else if (os_strcmp(buf, "acs_num_scans") == 0) { } else if (os_strcmp(buf, "acs_num_scans") == 0) {
@ -2470,7 +2468,7 @@ static int hostapd_config_fill(struct hostapd_config *conf,
wpa_printf(MSG_ERROR, "Line %d: invalid acs_num_scans %d (expected 1..100)", wpa_printf(MSG_ERROR, "Line %d: invalid acs_num_scans %d (expected 1..100)",
line, val); line, val);
return 1; return 1;
} else }
conf->acs_num_scans = val; conf->acs_num_scans = val;
#endif /* CONFIG_ACS */ #endif /* CONFIG_ACS */
} else if (os_strcmp(buf, "dtim_period") == 0) { } else if (os_strcmp(buf, "dtim_period") == 0) {
@ -2502,7 +2500,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,
if (val != 0 && val != 1) { if (val != 0 && val != 1) {
wpa_printf(MSG_ERROR, "Line %d: invalid send_probe_response %d (expected 0 or 1)", wpa_printf(MSG_ERROR, "Line %d: invalid send_probe_response %d (expected 0 or 1)",
line, val); line, val);
} else return 1;
}
conf->send_probe_response = val; conf->send_probe_response = val;
} else if (os_strcmp(buf, "supported_rates") == 0) { } else if (os_strcmp(buf, "supported_rates") == 0) {
if (hostapd_parse_intlist(&conf->supported_rates, pos)) { if (hostapd_parse_intlist(&conf->supported_rates, pos)) {
@ -2798,8 +2797,7 @@ static int hostapd_config_fill(struct hostapd_config *conf,
#endif /* CONFIG_WPS */ #endif /* CONFIG_WPS */
#ifdef CONFIG_P2P_MANAGER #ifdef CONFIG_P2P_MANAGER
} else if (os_strcmp(buf, "manage_p2p") == 0) { } else if (os_strcmp(buf, "manage_p2p") == 0) {
int manage = atoi(pos); if (atoi(pos))
if (manage)
bss->p2p |= P2P_MANAGE; bss->p2p |= P2P_MANAGE;
else else
bss->p2p &= ~P2P_MANAGE; bss->p2p &= ~P2P_MANAGE;
@ -2812,14 +2810,12 @@ static int hostapd_config_fill(struct hostapd_config *conf,
} else if (os_strcmp(buf, "disassoc_low_ack") == 0) { } else if (os_strcmp(buf, "disassoc_low_ack") == 0) {
bss->disassoc_low_ack = atoi(pos); bss->disassoc_low_ack = atoi(pos);
} else if (os_strcmp(buf, "tdls_prohibit") == 0) { } else if (os_strcmp(buf, "tdls_prohibit") == 0) {
int val = atoi(pos); if (atoi(pos))
if (val)
bss->tdls |= TDLS_PROHIBIT; bss->tdls |= TDLS_PROHIBIT;
else else
bss->tdls &= ~TDLS_PROHIBIT; bss->tdls &= ~TDLS_PROHIBIT;
} else if (os_strcmp(buf, "tdls_prohibit_chan_switch") == 0) { } else if (os_strcmp(buf, "tdls_prohibit_chan_switch") == 0) {
int val = atoi(pos); if (atoi(pos))
if (val)
bss->tdls |= TDLS_PROHIBIT_CHAN_SWITCH; bss->tdls |= TDLS_PROHIBIT_CHAN_SWITCH;
else else
bss->tdls &= ~TDLS_PROHIBIT_CHAN_SWITCH; bss->tdls &= ~TDLS_PROHIBIT_CHAN_SWITCH;