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nl80211: Share a helper function for connect and associate commands

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Most of the attributes to these commands are identical and there is no
need to maintain two copies of the same functionality.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-12-30 20:34:57 +02:00
parent e00d546ca3
commit a0bdd1916f
1 changed files with 77 additions and 130 deletions
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205
src/drivers/driver_nl80211.c
View file

@ -8067,40 +8067,32 @@ nla_put_failure:
}
static int wpa_driver_nl80211_try_connect(
struct wpa_driver_nl80211_data *drv,
struct wpa_driver_associate_params *params)
static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
struct wpa_driver_associate_params *params,
struct nl_msg *msg)
{
struct nl_msg *msg;
enum nl80211_auth_type type;
int ret = 0;
int algs;
msg = nlmsg_alloc();
if (!msg)
return -1;
wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
if (params->bssid) {
wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
MAC2STR(params->bssid));
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
}
if (params->freq) {
wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
drv->assoc_freq = params->freq;
} else
drv->assoc_freq = 0;
if (params->bg_scan_period >= 0) {
wpa_printf(MSG_DEBUG, " * bg scan period=%d",
params->bg_scan_period);
NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
params->bg_scan_period);
}
if (params->ssid) {
wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
params->ssid, params->ssid_len);
@ -8111,39 +8103,12 @@ static int wpa_driver_nl80211_try_connect(
os_memcpy(drv->ssid, params->ssid, params->ssid_len);
drv->ssid_len = params->ssid_len;
}
wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
if (params->wpa_ie)
NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
params->wpa_ie);
algs = 0;
if (params->auth_alg & WPA_AUTH_ALG_OPEN)
algs++;
if (params->auth_alg & WPA_AUTH_ALG_SHARED)
algs++;
if (params->auth_alg & WPA_AUTH_ALG_LEAP)
algs++;
if (algs > 1) {
wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
"selection");
goto skip_auth_type;
}
if (params->auth_alg & WPA_AUTH_ALG_OPEN)
type = NL80211_AUTHTYPE_OPEN_SYSTEM;
else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
type = NL80211_AUTHTYPE_SHARED_KEY;
else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
type = NL80211_AUTHTYPE_NETWORK_EAP;
else if (params->auth_alg & WPA_AUTH_ALG_FT)
type = NL80211_AUTHTYPE_FT;
else
goto nla_put_failure;
wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
skip_auth_type:
if (params->wpa_proto) {
enum nl80211_wpa_versions ver = 0;
@ -8157,13 +8122,15 @@ skip_auth_type:
}
if (params->pairwise_suite != WPA_CIPHER_NONE) {
NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
wpa_cipher_to_cipher_suite(params->pairwise_suite));
u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
}
if (params->group_suite != WPA_CIPHER_NONE) {
NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
wpa_cipher_to_cipher_suite(params->group_suite));
u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
}
if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
@ -8194,12 +8161,10 @@ skip_auth_type:
NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
}
#ifdef CONFIG_IEEE80211W
NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
#endif /* CONFIG_IEEE80211W */
NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
if (params->disable_ht)
NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
@ -8225,6 +8190,63 @@ skip_auth_type:
}
#endif /* CONFIG_VHT_OVERRIDES */
if (params->p2p)
wpa_printf(MSG_DEBUG, " * P2P group");
return 0;
nla_put_failure:
return -1;
}
static int wpa_driver_nl80211_try_connect(
struct wpa_driver_nl80211_data *drv,
struct wpa_driver_associate_params *params)
{
struct nl_msg *msg;
enum nl80211_auth_type type;
int ret;
int algs;
msg = nlmsg_alloc();
if (!msg)
return -1;
wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
ret = nl80211_connect_common(drv, params, msg);
if (ret)
goto nla_put_failure;
algs = 0;
if (params->auth_alg & WPA_AUTH_ALG_OPEN)
algs++;
if (params->auth_alg & WPA_AUTH_ALG_SHARED)
algs++;
if (params->auth_alg & WPA_AUTH_ALG_LEAP)
algs++;
if (algs > 1) {
wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
"selection");
goto skip_auth_type;
}
if (params->auth_alg & WPA_AUTH_ALG_OPEN)
type = NL80211_AUTHTYPE_OPEN_SYSTEM;
else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
type = NL80211_AUTHTYPE_SHARED_KEY;
else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
type = NL80211_AUTHTYPE_NETWORK_EAP;
else if (params->auth_alg & WPA_AUTH_ALG_FT)
type = NL80211_AUTHTYPE_FT;
else
goto nla_put_failure;
wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
skip_auth_type:
ret = nl80211_set_conn_keys(params, msg);
if (ret)
goto nla_put_failure;
@ -8274,7 +8296,7 @@ static int wpa_driver_nl80211_associate(
{
struct i802_bss *bss = priv;
struct wpa_driver_nl80211_data *drv = bss->drv;
int ret = -1;
int ret;
struct nl_msg *msg;
if (params->mode == IEEE80211_MODE_AP)
@ -8302,57 +8324,9 @@ static int wpa_driver_nl80211_associate(
drv->ifindex);
nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
if (params->bssid) {
wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
MAC2STR(params->bssid));
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
}
if (params->freq) {
wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
drv->assoc_freq = params->freq;
} else
drv->assoc_freq = 0;
if (params->bg_scan_period >= 0) {
wpa_printf(MSG_DEBUG, " * bg scan period=%d",
params->bg_scan_period);
NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
params->bg_scan_period);
}
if (params->ssid) {
wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
params->ssid, params->ssid_len);
NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
params->ssid);
if (params->ssid_len > sizeof(drv->ssid))
ret = nl80211_connect_common(drv, params, msg);
if (ret)
goto nla_put_failure;
os_memcpy(drv->ssid, params->ssid, params->ssid_len);
drv->ssid_len = params->ssid_len;
}
wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
if (params->wpa_ie)
NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
params->wpa_ie);
if (params->pairwise_suite != WPA_CIPHER_NONE) {
u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
}
if (params->group_suite != WPA_CIPHER_NONE) {
u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
}
#ifdef CONFIG_IEEE80211W
if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
#endif /* CONFIG_IEEE80211W */
NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
if (params->prev_bssid) {
wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
@ -8361,33 +8335,6 @@ static int wpa_driver_nl80211_associate(
params->prev_bssid);
}
if (params->disable_ht)
NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
if (params->htcaps && params->htcaps_mask) {
int sz = sizeof(struct ieee80211_ht_capabilities);
NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
params->htcaps_mask);
}
#ifdef CONFIG_VHT_OVERRIDES
if (params->disable_vht) {
wpa_printf(MSG_DEBUG, " * VHT disabled");
NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
}
if (params->vhtcaps && params->vhtcaps_mask) {
int sz = sizeof(struct ieee80211_vht_capabilities);
NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
params->vhtcaps_mask);
}
#endif /* CONFIG_VHT_OVERRIDES */
if (params->p2p)
wpa_printf(MSG_DEBUG, " * P2P group");
ret = send_and_recv_msgs(drv, msg, NULL, NULL);
msg = NULL;
if (ret) {