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Diffstat (limited to 'net/llc/llc_c_ev.c')
-rw-r--r--net/llc/llc_c_ev.c157
1 files changed, 68 insertions, 89 deletions
diff --git a/net/llc/llc_c_ev.c b/net/llc/llc_c_ev.c
index d5bdb53..c5deda2 100644
--- a/net/llc/llc_c_ev.c
+++ b/net/llc/llc_c_ev.c
@@ -37,6 +37,7 @@
#include <net/llc_conn.h>
#include <net/llc_sap.h>
#include <net/sock.h>
+#include <net/llc_c_ac.h>
#include <net/llc_c_ev.h>
#include <net/llc_pdu.h>
@@ -46,8 +47,6 @@
#define dprintk(args...)
#endif
-extern u16 llc_circular_between(u8 a, u8 b, u8 c);
-
/**
* llc_util_ns_inside_rx_window - check if sequence number is in rx window
* @ns: sequence number of received pdu.
@@ -99,7 +98,7 @@ out:
int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->prim == LLC_CONN_PRIM &&
ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1;
@@ -107,7 +106,7 @@ int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->prim == LLC_DATA_PRIM &&
ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1;
@@ -115,7 +114,7 @@ int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->prim == LLC_DISC_PRIM &&
ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1;
@@ -123,7 +122,7 @@ int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->prim == LLC_RESET_PRIM &&
ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1;
@@ -131,7 +130,7 @@ int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type == LLC_CONN_EV_TYPE_SIMPLE &&
ev->prim_type == LLC_CONN_EV_LOCAL_BUSY_DETECTED ? 0 : 1;
@@ -139,7 +138,7 @@ int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type == LLC_CONN_EV_TYPE_SIMPLE &&
ev->prim_type == LLC_CONN_EV_LOCAL_BUSY_CLEARED ? 0 : 1;
@@ -152,7 +151,7 @@ int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_DISC ? 0 : 1;
@@ -160,7 +159,7 @@ int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_DM ? 0 : 1;
@@ -168,7 +167,7 @@ int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
LLC_U_PDU_RSP(pdu) == LLC_2_PDU_RSP_FRMR ? 0 : 1;
@@ -176,7 +175,7 @@ int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return llc_conn_space(sk, skb) &&
LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
@@ -186,7 +185,7 @@ int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return llc_conn_space(sk, skb) &&
LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
@@ -197,9 +196,9 @@ int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
LLC_I_PF_IS_0(pdu) && ns != vr &&
@@ -209,9 +208,9 @@ int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
LLC_I_PF_IS_1(pdu) && ns != vr &&
@@ -221,10 +220,11 @@ int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn * pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
- u16 rc = LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) && ns != vr &&
+ const struct llc_pdu_sn * pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
+ const u16 rc = LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
+ ns != vr &&
llc_util_ns_inside_rx_window(ns, vr, llc_sk(sk)->rw) ? 0 : 1;
if (!rc)
dprintk("%s: matched, state=%d, ns=%d, vr=%d\n",
@@ -234,7 +234,7 @@ int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return llc_conn_space(sk, skb) &&
LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
@@ -244,7 +244,7 @@ int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
LLC_I_PF_IS_1(pdu) &&
@@ -253,7 +253,7 @@ int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return llc_conn_space(sk, skb) &&
LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
@@ -263,9 +263,9 @@ int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
LLC_I_PF_IS_0(pdu) && ns != vr &&
@@ -275,9 +275,9 @@ int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
LLC_I_PF_IS_1(pdu) && ns != vr &&
@@ -287,9 +287,9 @@ int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && ns != vr &&
!llc_util_ns_inside_rx_window(ns, vr, llc_sk(sk)->rw) ? 0 : 1;
@@ -298,10 +298,11 @@ int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vr = llc_sk(sk)->vR;
- u8 ns = LLC_I_GET_NS(pdu);
- u16 rc = LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) && ns != vr &&
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vr = llc_sk(sk)->vR;
+ const u8 ns = LLC_I_GET_NS(pdu);
+ const u16 rc = LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_I(pdu) &&
+ ns != vr &&
llc_util_ns_inside_rx_window(ns, vr, llc_sk(sk)->rw) ? 0 : 1;
if (!rc)
dprintk("%s: matched, state=%d, ns=%d, vr=%d\n",
@@ -311,7 +312,7 @@ int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_0(pdu) &&
@@ -320,7 +321,7 @@ int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_1(pdu) &&
@@ -329,7 +330,7 @@ int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_0(pdu) &&
@@ -338,7 +339,7 @@ int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_1(pdu) &&
@@ -347,7 +348,7 @@ int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PDU_RSP(pdu) == LLC_2_PDU_RSP_REJ ? 0 : 1;
@@ -355,7 +356,7 @@ int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_0(pdu) &&
@@ -364,7 +365,7 @@ int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_1(pdu) &&
@@ -373,7 +374,7 @@ int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_0(pdu) &&
@@ -382,7 +383,7 @@ int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_1(pdu) &&
@@ -391,7 +392,7 @@ int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_0(pdu) &&
@@ -400,7 +401,7 @@ int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
LLC_S_PF_IS_1(pdu) &&
@@ -409,7 +410,7 @@ int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return llc_conn_space(sk, skb) &&
LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
@@ -419,7 +420,7 @@ int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
return llc_conn_space(sk, skb) &&
LLC_PDU_IS_RSP(pdu) && LLC_PDU_TYPE_IS_S(pdu) &&
@@ -429,7 +430,7 @@ int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
{
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
return LLC_PDU_IS_CMD(pdu) && LLC_PDU_TYPE_IS_U(pdu) &&
LLC_U_PDU_CMD(pdu) == LLC_2_PDU_CMD_SABME ? 0 : 1;
@@ -446,7 +447,7 @@ int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
{
u16 rc = 1;
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
if (LLC_PDU_IS_CMD(pdu)) {
if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) {
@@ -461,7 +462,7 @@ int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
{
u16 rc = 1;
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
if (LLC_PDU_IS_CMD(pdu)) {
if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu))
@@ -477,32 +478,10 @@ int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb)
return rc;
}
-int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb)
-{
- u16 rc = 1;
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
-
- if (LLC_PDU_IS_RSP(pdu)) {
- if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) {
- if (LLC_I_PF_IS_1(pdu))
- rc = 0;
- } else if (LLC_PDU_TYPE_IS_U(pdu))
- switch (LLC_U_PDU_RSP(pdu)) {
- case LLC_2_PDU_RSP_UA:
- case LLC_2_PDU_RSP_DM:
- case LLC_2_PDU_RSP_FRMR:
- if (LLC_U_PF_IS_1(pdu))
- rc = 0;
- break;
- }
- }
- return rc;
-}
-
int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb)
{
u16 rc = 1;
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
+ const struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
if (LLC_PDU_IS_RSP(pdu)) {
if (LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu))
@@ -524,9 +503,9 @@ int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk,
struct sk_buff *skb)
{
u16 rc = 1;
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vs = llc_sk(sk)->vS;
- u8 nr = LLC_I_GET_NR(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vs = llc_sk(sk)->vS;
+ const u8 nr = LLC_I_GET_NR(pdu);
if (LLC_PDU_IS_CMD(pdu) &&
(LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) &&
@@ -542,9 +521,9 @@ int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk,
struct sk_buff *skb)
{
u16 rc = 1;
- struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
- u8 vs = llc_sk(sk)->vS;
- u8 nr = LLC_I_GET_NR(pdu);
+ const struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
+ const u8 vs = llc_sk(sk)->vS;
+ const u8 nr = LLC_I_GET_NR(pdu);
if (LLC_PDU_IS_RSP(pdu) &&
(LLC_PDU_TYPE_IS_I(pdu) || LLC_PDU_TYPE_IS_S(pdu)) &&
@@ -563,28 +542,28 @@ int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type != LLC_CONN_EV_TYPE_P_TMR;
}
int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type != LLC_CONN_EV_TYPE_ACK_TMR;
}
int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type != LLC_CONN_EV_TYPE_REJ_TMR;
}
int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type != LLC_CONN_EV_TYPE_BUSY_TMR;
}
@@ -596,7 +575,7 @@ int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb)
int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb)
{
- struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+ const struct llc_conn_state_ev *ev = llc_conn_ev(skb);
return ev->type == LLC_CONN_EV_TYPE_SIMPLE &&
ev->prim_type == LLC_CONN_EV_TX_BUFF_FULL ? 0 : 1;
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