Add support for WEP (encryption) for silver and gold WaveLAN/IEEE turbo cards.

Also update wicontrol to enable/disable encryption, set WEP keys and set the
TX key index. Silver cards only have 40-bit keys. This is something of a quick
hack, but it works well enough for me to commit this from the LinuxWorld
exhibit floor.

The WEP support only shows up if you have a card that supports it.

Would have been approved by: jkh, if he hadn't wandered off somewhere
Approved in his place by: msmith, who's standing right here

1 files changed, 30 insertions, 0 deletions

diff --git a/sys/i386/isa/if_wi.c b/sys/i386/isa/if_wi.c
index 6f005f7..e678b02 100644
--- a/sys/i386/isa/if_wi.c
+++ b/sys/i386/isa/if_wi.c
@@ -310,6 +310,14 @@ static int wi_pccard_attach(device_t dev)
 	wi_read_record(sc, &gen);
 	sc->wi_channel = gen.wi_val;
 
+	/*
+	 * Find out if we support WEP on this card.
+	 */
+	gen.wi_type = WI_RID_WEP_AVAIL;
+	gen.wi_len = 2;
+	wi_read_record(sc, &gen);
+	sc->wi_has_wep = gen.wi_val;
+
 	bzero((char *)&sc->wi_stats, sizeof(sc->wi_stats));
 
 	wi_init(sc);
@@ -932,6 +940,16 @@ static void wi_setdef(sc, wreq)
 	case WI_RID_MAX_SLEEP:
 		sc->wi_max_sleep = wreq->wi_val[0];
 		break;
+	case WI_RID_ENCRYPTION:
+		sc->wi_use_wep = wreq->wi_val[0];
+		break;
+	case WI_RID_TX_CRYPT_KEY:
+		sc->wi_tx_key = wreq->wi_val[0];
+		break;
+	case WI_RID_DEFLT_CRYPT_KEYS:
+		bcopy((char *)wreq, (char *)&sc->wi_keys,
+		    sizeof(struct wi_ltv_keys));
+		break;
 	default:
 		break;
 	}
@@ -999,6 +1017,9 @@ static int wi_ioctl(ifp, command, data)
 			bcopy((char *)&sc->wi_stats, (char *)&wreq.wi_val,
 			    sizeof(sc->wi_stats));
 			wreq.wi_len = (sizeof(sc->wi_stats) / 2) + 1;
+		} else if (wreq.wi_type == WI_RID_DEFLT_CRYPT_KEYS) {
+			bcopy((char *)&sc->wi_keys, (char *)&wreq,
+			    sizeof(struct wi_ltv_keys));
 		}
 #ifdef WICACHE
 		else if (wreq.wi_type == WI_RID_ZERO_CACHE) {
@@ -1111,6 +1132,15 @@ static void wi_init(xsc)
 	   (char *)&mac.wi_mac_addr, ETHER_ADDR_LEN);
 	wi_write_record(sc, (struct wi_ltv_gen *)&mac);
 
+	/* Configure WEP. */
+	if (sc->wi_has_wep) {
+		WI_SETVAL(WI_RID_ENCRYPTION, sc->wi_use_wep);
+		WI_SETVAL(WI_RID_TX_CRYPT_KEY, sc->wi_tx_key);
+		sc->wi_keys.wi_len = (sizeof(struct wi_ltv_keys) / 2) + 1;
+		sc->wi_keys.wi_type = WI_RID_DEFLT_CRYPT_KEYS;
+		wi_write_record(sc, (struct wi_ltv_gen *)&sc->wi_keys);
+	}
+
 	/* Initialize promisc mode. */
 	if (ifp->if_flags & IFF_PROMISC) {
 		WI_SETVAL(WI_RID_PROMISC, 1);