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qcacld-3.0: Allow roaming to whitelist SSID

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Currently, when roaming to different SSID, the host driver
validates the SSID of the current connected AP and the roamed
SSID. If the validation fails, the driver disassociates with
the current AP, which results in data path carrier queues being
disabled. And as part of the roam indication to the user space,
the driver doesn't enable carrier queues.

Check if the SSID from the roam synch indication is present in
the allowed SSID list, if the SSID is present don't
disassociate with current AP.

Change-Id: Iafe3497d5d00753edbd5d5176ff3acd1a6d949bd
CRs-Fixed: 2567233
This commit is contained in:
Pragaspathi Thilagaraj 2019-11-18 20:10:04 +05:30 • committed by nshrivas
commit 7be8933aba
1 changed files with 38 additions and 2 deletions
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40
core/sme/src/csr/csr_api_roam.c
View file

@ -5193,6 +5193,41 @@ error:
return is_null_ssid_match;
}
/**
* csr_check_for_allowed_ssid() - Function to check if the roamed
* SSID is present in the configured Allowed SSID list
* @mac: Pointer to global mac_ctx
* @bss_desc: bss descriptor pointer
* @roamed_bss_ies: Pointer to roamed BSS IEs
*
* Return: True if SSID match found else False
*/
static bool
csr_check_for_allowed_ssid(struct mac_context *mac,
struct bss_description *bss_desc,
tDot11fBeaconIEs *roamed_bss_ies)
{
uint8_t i;
tSirMacSSid *ssid_list =
mac->roam.configParam.roam_params.ssid_allowed_list;
uint8_t num_ssid_allowed_list =
mac->roam.configParam.roam_params.num_ssid_allowed_list;
if (!roamed_bss_ies) {
sme_info(" Roamed BSS IEs NULL");
return false;
}
for (i = 0; i < num_ssid_allowed_list; i++) {
if (ssid_list[i].length == roamed_bss_ies->SSID.num_ssid &&
!qdf_mem_cmp(ssid_list[i].ssId, roamed_bss_ies->SSID.ssid,
ssid_list[i].length))
return true;
}
return false;
}
static
QDF_STATUS csr_roam_stop_network(struct mac_context *mac, uint32_t sessionId,
struct csr_roam_profile *roam_profile,
@ -5245,8 +5280,9 @@ QDF_STATUS csr_roam_stop_network(struct mac_context *mac, uint32_t sessionId,
* Not worry about WDS connection for now
*/
ssid_match =
csr_check_for_hidden_ssid_match(mac, pSession,
bss_desc, pIes);
(csr_check_for_allowed_ssid(mac, bss_desc, pIes) ||
csr_check_for_hidden_ssid_match(mac, pSession,
bss_desc, pIes));
if (!ssid_match)
ssid_match = csr_is_ssid_equal(
mac, pSession->pConnectBssDesc,