/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com) */ #include <linux/config.h> #include <linux/mm.h> #include <linux/sysctl.h> #include <linux/spinlock.h> #include <net/ax25.h> static int min_ipdefmode[1], max_ipdefmode[] = {1}; static int min_axdefmode[1], max_axdefmode[] = {1}; static int min_backoff[1], max_backoff[] = {2}; static int min_conmode[1], max_conmode[] = {2}; static int min_window[] = {1}, max_window[] = {7}; static int min_ewindow[] = {1}, max_ewindow[] = {63}; static int min_t1[] = {1}, max_t1[] = {30 * HZ}; static int min_t2[] = {1}, max_t2[] = {20 * HZ}; static int min_t3[1], max_t3[] = {3600 * HZ}; static int min_idle[1], max_idle[] = {65535 * HZ}; static int min_n2[] = {1}, max_n2[] = {31}; static int min_paclen[] = {1}, max_paclen[] = {512}; static int min_proto[1], max_proto[] = {3}; static int min_ds_timeout[1], max_ds_timeout[] = {65535 * HZ}; static struct ctl_table_header *ax25_table_header; static ctl_table *ax25_table; static int ax25_table_size; static ctl_table ax25_dir_table[] = { { .ctl_name = NET_AX25, .procname = "ax25", .mode = 0555, }, { .ctl_name = 0 } }; static ctl_table ax25_root_table[] = { { .ctl_name = CTL_NET, .procname = "net", .mode = 0555, .child = ax25_dir_table }, { .ctl_name = 0 } }; static const ctl_table ax25_param_table[] = { { .ctl_name = NET_AX25_IP_DEFAULT_MODE, .procname = "ip_default_mode", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_ipdefmode, .extra2 = &max_ipdefmode }, { .ctl_name = NET_AX25_DEFAULT_MODE, .procname = "ax25_default_mode", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_axdefmode, .extra2 = &max_axdefmode }, { .ctl_name = NET_AX25_BACKOFF_TYPE, .procname = "backoff_type", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_backoff, .extra2 = &max_backoff }, { .ctl_name = NET_AX25_CONNECT_MODE, .procname = "connect_mode", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_conmode, .extra2 = &max_conmode }, { .ctl_name = NET_AX25_STANDARD_WINDOW, .procname = "standard_window_size", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_window, .extra2 = &max_window }, { .ctl_name = NET_AX25_EXTENDED_WINDOW, .procname = "extended_window_size", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_ewindow, .extra2 = &max_ewindow }, { .ctl_name = NET_AX25_T1_TIMEOUT, .procname = "t1_timeout", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_t1, .extra2 = &max_t1 }, { .ctl_name = NET_AX25_T2_TIMEOUT, .procname = "t2_timeout", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_t2, .extra2 = &max_t2 }, { .ctl_name = NET_AX25_T3_TIMEOUT, .procname = "t3_timeout", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_t3, .extra2 = &max_t3 }, { .ctl_name = NET_AX25_IDLE_TIMEOUT, .procname = "idle_timeout", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_idle, .extra2 = &max_idle }, { .ctl_name = NET_AX25_N2, .procname = "maximum_retry_count", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_n2, .extra2 = &max_n2 }, { .ctl_name = NET_AX25_PACLEN, .procname = "maximum_packet_length", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_paclen, .extra2 = &max_paclen }, { .ctl_name = NET_AX25_PROTOCOL, .procname = "protocol", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_proto, .extra2 = &max_proto }, { .ctl_name = NET_AX25_DAMA_SLAVE_TIMEOUT, .procname = "dama_slave_timeout", .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, .strategy = &sysctl_intvec, .extra1 = &min_ds_timeout, .extra2 = &max_ds_timeout }, { .ctl_name = 0 } /* that's all, folks! */ }; void ax25_register_sysctl(void) { ax25_dev *ax25_dev; int n, k; spin_lock_bh(&ax25_dev_lock); for (ax25_table_size = sizeof(ctl_table), ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) ax25_table_size += sizeof(ctl_table); if ((ax25_table = kmalloc(ax25_table_size, GFP_ATOMIC)) == NULL) { spin_unlock_bh(&ax25_dev_lock); return; } memset(ax25_table, 0x00, ax25_table_size); for (n = 0, ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) { ctl_table *child = kmalloc(sizeof(ax25_param_table), GFP_ATOMIC); if (!child) { while (n--) kfree(ax25_table[n].child); kfree(ax25_table); spin_unlock_bh(&ax25_dev_lock); return; } memcpy(child, ax25_param_table, sizeof(ax25_param_table)); ax25_table[n].child = ax25_dev->systable = child; ax25_table[n].ctl_name = n + 1; ax25_table[n].procname = ax25_dev->dev->name; ax25_table[n].mode = 0555; #ifndef CONFIG_AX25_DAMA_SLAVE /* * We do not wish to have a representation of this parameter * in /proc/sys/ when configured *not* to include the * AX.25 DAMA slave code, do we? */ child[AX25_VALUES_DS_TIMEOUT].procname = NULL; #endif child[AX25_MAX_VALUES].ctl_name = 0; /* just in case... */ for (k = 0; k < AX25_MAX_VALUES; k++) child[k].data = &ax25_dev->values[k]; n++; } spin_unlock_bh(&ax25_dev_lock); ax25_dir_table[0].child = ax25_table; ax25_table_header = register_sysctl_table(ax25_root_table, 1); } void ax25_unregister_sysctl(void) { ctl_table *p; unregister_sysctl_table(ax25_table_header); ax25_dir_table[0].child = NULL; for (p = ax25_table; p->ctl_name; p++) kfree(p->child); kfree(ax25_table); }