X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fllc%2Fllc_c_ac.c;h=8169f24ed33e51649c9c8c80f27f3fa9dc88c3a7;hb=489447380a2921ec0e9154f773c44ab3167ede4b;hp=c1e75103189a24519005ee4ed49ff7cf11956ce1;hpb=04e4223f44b89e50f275cb6b95a58ebe2c4909be;p=linux-2.6

diff --git a/net/llc/llc_c_ac.c b/net/llc/llc_c_ac.c
index c1e7510318..8169f24ed3 100644
--- a/net/llc/llc_c_ac.c
+++ b/net/llc/llc_c_ac.c
@@ -60,23 +60,10 @@ int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb)
 
 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb)
 {
-	int rc = -ENOTCONN;
-	u8 dsap;
-	struct llc_sap *sap;
-
-	llc_pdu_decode_dsap(skb, &dsap);
-	sap = llc_sap_find(dsap);
-	if (sap) {
-		struct llc_conn_state_ev *ev = llc_conn_ev(skb);
-		struct llc_sock *llc = llc_sk(sk);
+	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 
-		llc_pdu_decode_sa(skb, llc->daddr.mac);
-		llc_pdu_decode_da(skb, llc->laddr.mac);
-		llc->dev = skb->dev;
-		ev->ind_prim = LLC_CONN_PRIM;
-		rc = 0;
-	}
-	return rc;
+	ev->ind_prim = LLC_CONN_PRIM;
+	return 0;
 }
 
 int llc_conn_ac_conn_confirm(struct sock *sk, struct sk_buff *skb)
@@ -212,7 +199,7 @@ int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -237,7 +224,7 @@ int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -263,7 +250,7 @@ int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -296,7 +283,7 @@ int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb)
 		llc_pdu_decode_pf_bit(skb, &f_bit);
 	else
 		f_bit = 0;
-	nskb = llc_alloc_frame(llc->dev);
+	nskb = llc_alloc_frame(sk, llc->dev);
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
 
@@ -320,7 +307,7 @@ int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -350,7 +337,7 @@ int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb)
 	struct llc_sock *llc = llc_sk(sk);
 
 	llc_pdu_decode_pf_bit(skb, &f_bit);
-	nskb = llc_alloc_frame(llc->dev);
+	nskb = llc_alloc_frame(sk, llc->dev);
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
 		struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
@@ -438,7 +425,7 @@ int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk,
 	struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -473,7 +460,7 @@ int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -497,7 +484,7 @@ int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -521,7 +508,7 @@ int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -545,7 +532,7 @@ int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -569,7 +556,7 @@ int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -593,7 +580,7 @@ int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -629,7 +616,7 @@ int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -653,7 +640,7 @@ int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -677,7 +664,7 @@ int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -702,7 +689,7 @@ int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -726,7 +713,7 @@ int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -750,7 +737,7 @@ int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -784,7 +771,7 @@ int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -813,7 +800,7 @@ int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb)
 	u8 f_bit;
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	llc_pdu_decode_pf_bit(skb, &f_bit);
 	if (nskb) {
@@ -879,7 +866,8 @@ int llc_conn_ac_send_ack_if_needed(struct sock *sk, struct sk_buff *skb)
 		llc->ack_must_be_send = 1;
 		llc->ack_pf = pf_bit & 1;
 	}
-	if (((llc->vR - llc->first_pdu_Ns + 129) % 128) >= llc->npta) {
+	if (((llc->vR - llc->first_pdu_Ns + 1 + LLC_2_SEQ_NBR_MODULO)
+			% LLC_2_SEQ_NBR_MODULO) >= llc->npta) {
 		llc_conn_ac_send_rr_rsp_f_set_ackpf(sk, skb);
 		llc->ack_must_be_send	= 0;
 		llc->ack_pf		= 0;
@@ -969,7 +957,7 @@ static int llc_conn_ac_send_rr_rsp_f_set_ackpf(struct sock *sk,
 {
 	int rc = -ENOBUFS;
 	struct llc_sock *llc = llc_sk(sk);
-	struct sk_buff *nskb = llc_alloc_frame(llc->dev);
+	struct sk_buff *nskb = llc_alloc_frame(sk, llc->dev);
 
 	if (nskb) {
 		struct llc_sap *sap = llc->sap;
@@ -1007,8 +995,8 @@ static int llc_conn_ac_inc_npta_value(struct sock *sk, struct sk_buff *skb)
 		llc->dec_step = 0;
 		llc->dec_cntr = llc->inc_cntr = 2;
 		++llc->npta;
-		if (llc->npta > 127)
-			llc->npta = 127 ;
+		if (llc->npta > (u8) ~LLC_2_SEQ_NBR_MODULO)
+			llc->npta = (u8) ~LLC_2_SEQ_NBR_MODULO;
 	} else
 		--llc->inc_cntr;
 	return 0;
@@ -1078,9 +1066,10 @@ int llc_conn_ac_dec_tx_win_size(struct sock *sk, struct sk_buff *skb)
 	struct llc_sock *llc = llc_sk(sk);
 	u8 unacked_pdu = skb_queue_len(&llc->pdu_unack_q);
 
-	llc->k -= unacked_pdu;
-	if (llc->k < 2)
-		llc->k = 2;
+	if (llc->k - unacked_pdu < 1)
+		llc->k = 1;
+	else
+		llc->k -= unacked_pdu;
 	return 0;
 }
 
@@ -1097,8 +1086,8 @@ int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb)
 	struct llc_sock *llc = llc_sk(sk);
 
 	llc->k += 1;
-	if (llc->k > 128)
-		llc->k = 128 ;
+	if (llc->k > (u8) ~LLC_2_SEQ_NBR_MODULO)
+		llc->k = (u8) ~LLC_2_SEQ_NBR_MODULO;
 	return 0;
 }
 
@@ -1320,9 +1309,9 @@ int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb)
 	return 0;
 }
 
-int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb)
+static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb)
 {
-	llc_sk(sk)->vS = (llc_sk(sk)->vS + 1) % 128;
+	llc_sk(sk)->vS = (llc_sk(sk)->vS + 1) % LLC_2_SEQ_NBR_MODULO;
 	return 0;
 }