#include <net/llc_pdu.h>
#include <net/llc.h>
-#include "llc_output.h"
static int llc_conn_ac_inc_vs_by_1(struct sock *sk, struct sk_buff *skb);
static void llc_process_tmr_ev(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)
{
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;
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_disc_cmd(nskb, 1);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
llc_conn_ac_set_p_flag_1(sk, 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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_dm_rsp(nskb, f_bit);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_dm_rsp(nskb, 1);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
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;
llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS,
llc->vR, INCORRECT);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc_pdu_init_as_frmr_rsp(nskb, pdu, 0, llc->vS,
llc->vR, INCORRECT);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
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);
llc_pdu_init_as_frmr_rsp(nskb, pdu, f_bit, llc->vS,
llc->vR, INCORRECT);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_i_cmd(skb, 1, llc->vS, llc->vR);
rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
- if (!rc) {
+ if (likely(!rc)) {
llc_conn_send_pdu(sk, skb);
llc_conn_ac_inc_vs_by_1(sk, skb);
}
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_i_cmd(skb, 0, llc->vS, llc->vR);
rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
- if (!rc) {
+ if (likely(!rc)) {
llc_conn_send_pdu(sk, skb);
llc_conn_ac_inc_vs_by_1(sk, skb);
}
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_i_cmd(skb, 0, llc->vS, llc->vR);
rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
- if (!rc) {
+ if (likely(!rc)) {
llc_conn_send_pdu(sk, skb);
llc_conn_ac_inc_vs_by_1(sk, skb);
}
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (!rc)
+ if (likely(!rc))
llc_conn_send_pdu(sk, nskb);
else
kfree_skb(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;
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_rej_cmd(nskb, 1, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rej_rsp(nskb, 1, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rej_rsp(nskb, 0, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_rnr_cmd(nskb, 1, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rnr_rsp(nskb, 1, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rnr_rsp(nskb, 0, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rnr_rsp(nskb, 0, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_rr_cmd(nskb, 1, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rr_rsp(nskb, f_bit, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rr_rsp(nskb, 1, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rr_rsp(nskb, 0, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
{
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;
llc->daddr.lsap, LLC_PDU_CMD);
llc_pdu_init_as_sabme_cmd(nskb, 1);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, dmac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
llc_conn_set_p_flag(sk, 1);
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) {
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_ua_rsp(nskb, f_bit);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_i_cmd(skb, llc->ack_pf, llc->vS, llc->vR);
rc = llc_mac_hdr_init(skb, llc->dev->dev_addr, llc->daddr.mac);
- if (!rc) {
+ if (likely(!rc)) {
llc_conn_send_pdu(sk, skb);
llc_conn_ac_inc_vs_by_1(sk, 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;
llc->daddr.lsap, LLC_PDU_RSP);
llc_pdu_init_as_rr_rsp(nskb, llc->ack_pf, llc->vR);
rc = llc_mac_hdr_init(nskb, llc->dev->dev_addr, llc->daddr.mac);
- if (rc)
+ if (unlikely(rc))
goto free;
llc_conn_send_pdu(sk, nskb);
}
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;
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;
}
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;
}
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;
}
if (skb) {
struct llc_conn_state_ev *ev = llc_conn_ev(skb);
- skb->sk = sk;
+ skb_set_owner_r(skb, sk);
ev->type = type;
llc_process_tmr_ev(sk, skb);
}