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sae: Return an error when dropping frames

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sae_verify_* functions were correctly marking frames to be dropped, but
were returning 0, which caused the to-be-dropped frames to be further
processed inside sae_rx_authenticate.  Fix that by returning a proper
error.
This commit is contained in:
Denis Kenzior 2021-07-10 19:15:51 -05:00
parent 3474953d16
commit 0925a362d6
1 changed files with 9 additions and 5 deletions
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14
src/sae.c
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@ -860,9 +860,10 @@ static int sae_verify_committed(struct sae_sm *sm, uint16_t transaction,
default: default:
/* /*
* If the Status is some other nonzero value, the frame shall * If the Status is some other nonzero value, the frame shall
* be silently discarded... * be silently discarded and the t0 (retransmission) timer
* shall be set.
*/ */
return 0; return -ENOMSG;
} }
reject_unsupp_group: reject_unsupp_group:
@ -882,10 +883,13 @@ static int sae_verify_confirmed(struct sae_sm *sm, uint16_t trans,
return 0; return 0;
/* /*
* If the Status is nonzero, the frame shall be silently discarded... * Upon receipt of a Com event, the t0 (retransmission) timer shall be
* canceled. If the Status is nonzero, the frame shall be silently
* discarded, the t0 (retransmission) timer set, and the protocol
* instance shall remain in the Confirmed state.
*/ */
if (status != 0) if (status != 0)
return 0; return -ENOMSG;
/* /*
* If Sync is greater than dot11RSNASAESync, the protocol instance * If Sync is greater than dot11RSNASAESync, the protocol instance
@ -900,7 +904,7 @@ static int sae_verify_confirmed(struct sae_sm *sm, uint16_t trans,
/* frame shall be silently discarded */ /* frame shall be silently discarded */
if (l_get_le16(frame) != sm->group) if (l_get_le16(frame) != sm->group)
return 0; return -EBADMSG;
/* /*
* the protocol instance shall increment Sync, increment Sc, and * the protocol instance shall increment Sync, increment Sc, and