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[net80211] WEP offload support.

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Yes, the ath10k NIC actually also does do WEP TX/RX offload.

Tested:

* ath10k driver port, WEP STA mode.
This commit is contained in:
Adrian Chadd 2016-12-22 23:59:53 +00:00
parent a04667ab17
commit f29b919350
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=310435
1 changed files with 21 additions and 0 deletions
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21
sys/net80211/ieee80211_crypto_wep.c
View File

@ -180,10 +180,22 @@ wep_encap(struct ieee80211_key *k, struct mbuf *m)
{
struct wep_ctx *ctx = k->wk_private;
struct ieee80211com *ic = ctx->wc_ic;
struct ieee80211_frame *wh;
uint8_t *ivp;
int hdrlen;
int is_mgmt;
hdrlen = ieee80211_hdrspace(ic, mtod(m, void *));
wh = mtod(m, struct ieee80211_frame *);
is_mgmt = IEEE80211_IS_MGMT(wh);
/*
* Check to see if IV is required.
*/
if (is_mgmt && (k->wk_flags & IEEE80211_KEY_NOIVMGT))
return 1;
if ((! is_mgmt) && (k->wk_flags & IEEE80211_KEY_NOIV))
return 1;
/*
* Copy down 802.11 header and add the IV + KeyID.
@ -228,9 +240,15 @@ wep_decap(struct ieee80211_key *k, struct mbuf *m, int hdrlen)
struct wep_ctx *ctx = k->wk_private;
struct ieee80211vap *vap = ctx->wc_vap;
struct ieee80211_frame *wh;
const struct ieee80211_rx_stats *rxs;
wh = mtod(m, struct ieee80211_frame *);
rxs = ieee80211_get_rx_params_ptr(m);
if ((rxs != NULL) && (rxs->c_pktflags & IEEE80211_RX_F_IV_STRIP))
goto finish;
/*
* Check if the device handled the decrypt in hardware.
* If so we just strip the header; otherwise we need to
@ -249,6 +267,9 @@ wep_decap(struct ieee80211_key *k, struct mbuf *m, int hdrlen)
*/
ovbcopy(mtod(m, void *), mtod(m, uint8_t *) + wep.ic_header, hdrlen);
m_adj(m, wep.ic_header);
finish:
/* XXX TODO: do we have to strip this for offload devices? */
m_adj(m, -wep.ic_trailer);
return 1;