diff options
Diffstat (limited to 'net/ax25/sysctl_net_ax25.c')
| -rw-r--r-- | net/ax25/sysctl_net_ax25.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c new file mode 100644 index 000000000..2154d004d --- /dev/null +++ b/net/ax25/sysctl_net_ax25.c @@ -0,0 +1,181 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * + * Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com) + */ +#include <linux/mm.h> +#include <linux/slab.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[] = {30000}; +static int min_t2[] = {1}, max_t2[] = {20000}; +static int min_t3[1], max_t3[] = {3600000}; +static int min_idle[1], max_idle[] = {65535000}; +static int min_n2[] = {1}, max_n2[] = {31}; +static int min_paclen[] = {1}, max_paclen[] = {512}; +static int min_proto[1], max_proto[] = { AX25_PROTO_MAX }; +#ifdef CONFIG_AX25_DAMA_SLAVE +static int min_ds_timeout[1], max_ds_timeout[] = {65535000}; +#endif + +static const struct ctl_table ax25_param_table[] = { + { + .procname = "ip_default_mode", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_ipdefmode, + .extra2 = &max_ipdefmode + }, + { + .procname = "ax25_default_mode", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_axdefmode, + .extra2 = &max_axdefmode + }, + { + .procname = "backoff_type", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_backoff, + .extra2 = &max_backoff + }, + { + .procname = "connect_mode", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_conmode, + .extra2 = &max_conmode + }, + { + .procname = "standard_window_size", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_window, + .extra2 = &max_window + }, + { + .procname = "extended_window_size", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_ewindow, + .extra2 = &max_ewindow + }, + { + .procname = "t1_timeout", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_t1, + .extra2 = &max_t1 + }, + { + .procname = "t2_timeout", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_t2, + .extra2 = &max_t2 + }, + { + .procname = "t3_timeout", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_t3, + .extra2 = &max_t3 + }, + { + .procname = "idle_timeout", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_idle, + .extra2 = &max_idle + }, + { + .procname = "maximum_retry_count", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_n2, + .extra2 = &max_n2 + }, + { + .procname = "maximum_packet_length", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_paclen, + .extra2 = &max_paclen + }, + { + .procname = "protocol", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_proto, + .extra2 = &max_proto + }, +#ifdef CONFIG_AX25_DAMA_SLAVE + { + .procname = "dama_slave_timeout", + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &min_ds_timeout, + .extra2 = &max_ds_timeout + }, +#endif + + { } /* that's all, folks! */ +}; + +int ax25_register_dev_sysctl(ax25_dev *ax25_dev) +{ + char path[sizeof("net/ax25/") + IFNAMSIZ]; + int k; + struct ctl_table *table; + + table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL); + if (!table) + return -ENOMEM; + + for (k = 0; k < AX25_MAX_VALUES; k++) + table[k].data = &ax25_dev->values[k]; + + snprintf(path, sizeof(path), "net/ax25/%s", ax25_dev->dev->name); + ax25_dev->sysheader = register_net_sysctl(&init_net, path, table); + if (!ax25_dev->sysheader) { + kfree(table); + return -ENOMEM; + } + return 0; +} + +void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev) +{ + struct ctl_table_header *header = ax25_dev->sysheader; + struct ctl_table *table; + + if (header) { + ax25_dev->sysheader = NULL; + table = header->ctl_table_arg; + unregister_net_sysctl_table(header); + kfree(table); + } +} |