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Interworking: Add sp_priority cred parameter

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This new priority parameter can be used to specify priorities between
credentials provisioned by the same SP. cred->priority is checked first
and if it is same and the provisioning_sp parameter matches, the new
sp_priority is used to order the credentials. It should be noted that
the order of priorities is different (higher 'priority' value indicates
higher priority of the credential, while higher 'sp_priority' indicates
lower priority of the credential).

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-10-29 19:14:40 +02:00 committed by Jouni Malinen
parent 751ac99768
commit 74794891c7
5 changed files with 49 additions and 12 deletions
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6
wpa_supplicant/README-HS20
View File

@ -227,6 +227,12 @@ Credentials can be pre-configured for automatic network selection:
# This optional field can be used to keep track of the SP that provisioned
# the credential to find the PPS MO (./Wi-Fi/<provisioning_sp>).
#
# sp_priority: Credential priority within a provisioning SP
# This is the priority of the credential among all credentials
# provisionined by the same SP (i.e., for entries that have identical
# provisioning_sp value). The range of this priority is 0-255 with 0
# being the highest and 255 the lower priority.
#
# Minimum backhaul threshold (PPS/<X+>/Policy/MinBackhauldThreshold/*)
# These fields can be used to specify minimum download/upload backhaul
# bandwidth that is preferred for the credential. This constraint is

8
wpa_supplicant/config.c
View File

@ -2485,6 +2485,14 @@ int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
return 0;
}
if (os_strcmp(var, "sp_priority") == 0) {
int prio = atoi(value);
if (prio < 0 || prio > 255)
return -1;
cred->sp_priority = prio;
return 0;
}
if (os_strcmp(var, "pcsc") == 0) {
cred->pcsc = atoi(value);
return 0;

10
wpa_supplicant/config.h
View File

@ -252,6 +252,16 @@ struct wpa_cred {
*/
char *provisioning_sp;
/**
* sp_priority - Credential priority within a provisioning SP
*
* This is the priority of the credential among all credentials
* provisionined by the same SP (i.e., for entries that have identical
* provisioning_sp value). The range of this priority is 0-255 with 0
* being the highest and 255 the lower priority.
*/
int sp_priority;
unsigned int min_dl_bandwidth_home;
unsigned int min_ul_bandwidth_home;
unsigned int min_dl_bandwidth_roaming;

2
wpa_supplicant/config_file.c
View File

@ -809,6 +809,8 @@ static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
if (cred->provisioning_sp)
fprintf(f, "\tprovisioning_sp=%s\n", cred->provisioning_sp);
if (cred->sp_priority)
fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
if (cred->min_dl_bandwidth_home)
fprintf(f, "\tmin_dl_bandwidth_home=%u\n",

35
wpa_supplicant/interworking.c
View File

@ -59,6 +59,13 @@ static int cred_prio_cmp(const struct wpa_cred *a, const struct wpa_cred *b)
return 1;
if (a->priority < b->priority)
return -1;
if (a->provisioning_sp == NULL || b->provisioning_sp == NULL ||
os_strcmp(a->provisioning_sp, b->provisioning_sp) != 0)
return 0;
if (a->sp_priority < b->sp_priority)
return 1;
if (a->sp_priority > b->sp_priority)
return -1;
return 0;
}
@ -1514,8 +1521,9 @@ static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
wpa_s, bss, 0, excl);
if (cred_rc) {
wpa_printf(MSG_DEBUG, "Interworking: Highest roaming "
"consortium matching credential priority %d",
cred_rc->priority);
"consortium matching credential priority %d "
"sp_priority %d",
cred_rc->priority, cred_rc->sp_priority);
if (allow_excluded && excl && !(*excl))
excl = NULL;
}
@ -1523,8 +1531,8 @@ static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
cred = interworking_credentials_available_realm(wpa_s, bss, 0, excl);
if (cred) {
wpa_printf(MSG_DEBUG, "Interworking: Highest NAI Realm list "
"matching credential priority %d",
cred->priority);
"matching credential priority %d sp_priority %d",
cred->priority, cred->sp_priority);
if (allow_excluded && excl && !(*excl))
excl = NULL;
}
@ -1533,7 +1541,8 @@ static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
excl);
if (cred_3gpp) {
wpa_printf(MSG_DEBUG, "Interworking: Highest 3GPP matching "
"credential priority %d", cred_3gpp->priority);
"credential priority %d sp_priority %d",
cred_3gpp->priority, cred_3gpp->sp_priority);
if (allow_excluded && excl && !(*excl))
excl = NULL;
}
@ -1545,8 +1554,8 @@ static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
if (cred_rc) {
wpa_printf(MSG_DEBUG, "Interworking: Highest roaming "
"consortium matching credential priority %d "
"(ignore BW)",
cred_rc->priority);
"sp_priority %d (ignore BW)",
cred_rc->priority, cred_rc->sp_priority);
if (allow_excluded && excl && !(*excl))
excl = NULL;
}
@ -1556,7 +1565,8 @@ static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
if (cred) {
wpa_printf(MSG_DEBUG, "Interworking: Highest NAI Realm "
"list matching credential priority %d "
"(ignore BW)", cred->priority);
"sp_priority %d (ignore BW)",
cred->priority, cred->sp_priority);
if (allow_excluded && excl && !(*excl))
excl = NULL;
}
@ -1565,8 +1575,9 @@ static int interworking_connect_helper(struct wpa_supplicant *wpa_s,
1, excl);
if (cred_3gpp) {
wpa_printf(MSG_DEBUG, "Interworking: Highest 3GPP "
"matching credential priority %d (ignore BW)",
cred_3gpp->priority);
"matching credential priority %d "
"sp_priority %d (ignore BW)",
cred_3gpp->priority, cred_3gpp->sp_priority);
if (allow_excluded && excl && !(*excl))
excl = NULL;
}
@ -2245,13 +2256,13 @@ static void interworking_select_network(struct wpa_supplicant *wpa_s)
bh = cred_below_min_backhaul(wpa_s, cred, bss);
bss_load = cred_over_max_bss_load(wpa_s, cred, bss);
conn_capab = cred_conn_capab_missing(wpa_s, cred, bss);
wpa_msg(wpa_s, MSG_INFO, "%s" MACSTR " type=%s%s%s%s id=%d priority=%d",
wpa_msg(wpa_s, MSG_INFO, "%s" MACSTR " type=%s%s%s%s id=%d priority=%d sp_priority=%d",
excluded ? INTERWORKING_BLACKLISTED : INTERWORKING_AP,
MAC2STR(bss->bssid), type,
bh ? " below_min_backhaul=1" : "",
bss_load ? " over_max_bss_load=1" : "",
conn_capab ? " conn_capab_missing=1" : "",
cred->id, cred->priority);
cred->id, cred->priority, cred->sp_priority);
if (excluded)
continue;
if (wpa_s->auto_select ||