^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/socket.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/sockios.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/net.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <net/ax25.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/inet.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <net/sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <net/tcp_states.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <net/netrom.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static void nr_heartbeat_expiry(struct timer_list *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static void nr_t1timer_expiry(struct timer_list *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static void nr_t2timer_expiry(struct timer_list *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static void nr_t4timer_expiry(struct timer_list *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static void nr_idletimer_expiry(struct timer_list *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) void nr_init_timers(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct nr_sock *nr = nr_sk(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) timer_setup(&nr->t1timer, nr_t1timer_expiry, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) timer_setup(&nr->t2timer, nr_t2timer_expiry, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) timer_setup(&nr->t4timer, nr_t4timer_expiry, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) timer_setup(&nr->idletimer, nr_idletimer_expiry, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* initialized by sock_init_data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) sk->sk_timer.function = nr_heartbeat_expiry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) void nr_start_t1timer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct nr_sock *nr = nr_sk(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) sk_reset_timer(sk, &nr->t1timer, jiffies + nr->t1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) void nr_start_t2timer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct nr_sock *nr = nr_sk(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) sk_reset_timer(sk, &nr->t2timer, jiffies + nr->t2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) void nr_start_t4timer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct nr_sock *nr = nr_sk(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) sk_reset_timer(sk, &nr->t4timer, jiffies + nr->t4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) void nr_start_idletimer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct nr_sock *nr = nr_sk(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (nr->idle > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) sk_reset_timer(sk, &nr->idletimer, jiffies + nr->idle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) void nr_start_heartbeat(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) sk_reset_timer(sk, &sk->sk_timer, jiffies + 5 * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) void nr_stop_t1timer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) sk_stop_timer(sk, &nr_sk(sk)->t1timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) void nr_stop_t2timer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) sk_stop_timer(sk, &nr_sk(sk)->t2timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) void nr_stop_t4timer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) sk_stop_timer(sk, &nr_sk(sk)->t4timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) void nr_stop_idletimer(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) sk_stop_timer(sk, &nr_sk(sk)->idletimer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) void nr_stop_heartbeat(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) sk_stop_timer(sk, &sk->sk_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int nr_t1timer_running(struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return timer_pending(&nr_sk(sk)->t1timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static void nr_heartbeat_expiry(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct sock *sk = from_timer(sk, t, sk_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct nr_sock *nr = nr_sk(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) bh_lock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) switch (nr->state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) case NR_STATE_0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /* Magic here: If we listen() and a new link dies before it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) is accepted() it isn't 'dead' so doesn't get removed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (sock_flag(sk, SOCK_DESTROY) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_DEAD))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) bh_unlock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) nr_destroy_socket(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) case NR_STATE_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * Check for the state of the receive buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (atomic_read(&sk->sk_rmem_alloc) < (sk->sk_rcvbuf / 2) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) (nr->condition & NR_COND_OWN_RX_BUSY)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) nr->condition &= ~NR_COND_OWN_RX_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) nr->condition &= ~NR_COND_ACK_PENDING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) nr->vl = nr->vr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) nr_write_internal(sk, NR_INFOACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) nr_start_heartbeat(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) bh_unlock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static void nr_t2timer_expiry(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct nr_sock *nr = from_timer(nr, t, t2timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct sock *sk = &nr->sock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) bh_lock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (nr->condition & NR_COND_ACK_PENDING) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) nr->condition &= ~NR_COND_ACK_PENDING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) nr_enquiry_response(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) bh_unlock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static void nr_t4timer_expiry(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct nr_sock *nr = from_timer(nr, t, t4timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct sock *sk = &nr->sock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) bh_lock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) nr_sk(sk)->condition &= ~NR_COND_PEER_RX_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) bh_unlock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static void nr_idletimer_expiry(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct nr_sock *nr = from_timer(nr, t, idletimer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct sock *sk = &nr->sock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) bh_lock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) nr_clear_queues(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) nr->n2count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) nr_write_internal(sk, NR_DISCREQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) nr->state = NR_STATE_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) nr_start_t1timer(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) nr_stop_t2timer(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) nr_stop_t4timer(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) sk->sk_state = TCP_CLOSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) sk->sk_err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) sk->sk_shutdown |= SEND_SHUTDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (!sock_flag(sk, SOCK_DEAD)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) sk->sk_state_change(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) sock_set_flag(sk, SOCK_DEAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) bh_unlock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static void nr_t1timer_expiry(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct nr_sock *nr = from_timer(nr, t, t1timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct sock *sk = &nr->sock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) bh_lock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) switch (nr->state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) case NR_STATE_1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) if (nr->n2count == nr->n2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) nr_disconnect(sk, ETIMEDOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) nr->n2count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) nr_write_internal(sk, NR_CONNREQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) case NR_STATE_2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) if (nr->n2count == nr->n2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) nr_disconnect(sk, ETIMEDOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) nr->n2count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) nr_write_internal(sk, NR_DISCREQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) case NR_STATE_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (nr->n2count == nr->n2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) nr_disconnect(sk, ETIMEDOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) nr->n2count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) nr_requeue_frames(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) nr_start_t1timer(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) bh_unlock_sock(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) sock_put(sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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