diff options
Diffstat (limited to 'net/ax25/sysctl_net_ax25.c')
| -rw-r--r-- | net/ax25/sysctl_net_ax25.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c new file mode 100644 index 000000000000..f67711f2ee96 --- /dev/null +++ b/net/ax25/sysctl_net_ax25.c @@ -0,0 +1,262 @@ +/* + * 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); +} |