^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) 1996 Mike Shaver (shaver@zeroknowledge.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <net/ax25.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) static int min_ipdefmode[1], max_ipdefmode[] = {1};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) static int min_axdefmode[1], max_axdefmode[] = {1};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) static int min_backoff[1], max_backoff[] = {2};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static int min_conmode[1], max_conmode[] = {2};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static int min_window[] = {1}, max_window[] = {7};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static int min_ewindow[] = {1}, max_ewindow[] = {63};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static int min_t1[] = {1}, max_t1[] = {30000};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static int min_t2[] = {1}, max_t2[] = {20000};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static int min_t3[1], max_t3[] = {3600000};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static int min_idle[1], max_idle[] = {65535000};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static int min_n2[] = {1}, max_n2[] = {31};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static int min_paclen[] = {1}, max_paclen[] = {512};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static int min_proto[1], max_proto[] = { AX25_PROTO_MAX };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #ifdef CONFIG_AX25_DAMA_SLAVE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int min_ds_timeout[1], max_ds_timeout[] = {65535000};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static const struct ctl_table ax25_param_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .procname = "ip_default_mode",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .extra1 = &min_ipdefmode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .extra2 = &max_ipdefmode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .procname = "ax25_default_mode",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .extra1 = &min_axdefmode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .extra2 = &max_axdefmode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) .procname = "backoff_type",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .extra1 = &min_backoff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .extra2 = &max_backoff
^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) .procname = "connect_mode",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .extra1 = &min_conmode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .extra2 = &max_conmode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .procname = "standard_window_size",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .extra1 = &min_window,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .extra2 = &max_window
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .procname = "extended_window_size",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .extra1 = &min_ewindow,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .extra2 = &max_ewindow
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .procname = "t1_timeout",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .extra1 = &min_t1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .extra2 = &max_t1
^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) .procname = "t2_timeout",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .extra1 = &min_t2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .extra2 = &max_t2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .procname = "t3_timeout",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .extra1 = &min_t3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .extra2 = &max_t3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .procname = "idle_timeout",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .extra1 = &min_idle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .extra2 = &max_idle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .procname = "maximum_retry_count",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .extra1 = &min_n2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .extra2 = &max_n2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .procname = "maximum_packet_length",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .extra1 = &min_paclen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .extra2 = &max_paclen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .procname = "protocol",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .extra1 = &min_proto,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .extra2 = &max_proto
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #ifdef CONFIG_AX25_DAMA_SLAVE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .procname = "dama_slave_timeout",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .maxlen = sizeof(int),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .extra1 = &min_ds_timeout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .extra2 = &max_ds_timeout
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) { } /* that's all, folks! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) char path[sizeof("net/ax25/") + IFNAMSIZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) int k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct ctl_table *table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (!table)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) for (k = 0; k < AX25_MAX_VALUES; k++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) table[k].data = &ax25_dev->values[k];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) snprintf(path, sizeof(path), "net/ax25/%s", ax25_dev->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) ax25_dev->sysheader = register_net_sysctl(&init_net, path, table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) if (!ax25_dev->sysheader) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) kfree(table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct ctl_table_header *header = ax25_dev->sysheader;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct ctl_table *table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (header) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) ax25_dev->sysheader = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) table = header->ctl_table_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) unregister_net_sysctl_table(header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) kfree(table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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