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7737e46d9d
Move from register_net_sysctl to register_net_sysctl_sz and pass the ARRAY_SIZE of the ctl_table array that was used to create the table variable. We need to move to the new function in preparation for when we change SIZE_MAX to ARRAY_SIZE() in the register_net_sysctl macro. Failing to do so would erroneously allow ARRAY_SIZE() to be called on a pointer. We hold off the SIZE_MAX to ARRAY_SIZE change until we have migrated all the relevant net sysctl registering functions to register_net_sysctl_sz in subsequent commits. Signed-off-by: Joel Granados <j.granados@samsung.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
183 lines
4.3 KiB
C
183 lines
4.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*
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* Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com)
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*/
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/sysctl.h>
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#include <linux/spinlock.h>
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#include <net/ax25.h>
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static int min_ipdefmode[1], max_ipdefmode[] = {1};
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static int min_axdefmode[1], max_axdefmode[] = {1};
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static int min_backoff[1], max_backoff[] = {2};
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static int min_conmode[1], max_conmode[] = {2};
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static int min_window[] = {1}, max_window[] = {7};
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static int min_ewindow[] = {1}, max_ewindow[] = {63};
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static int min_t1[] = {1}, max_t1[] = {30000};
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static int min_t2[] = {1}, max_t2[] = {20000};
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static int min_t3[1], max_t3[] = {3600000};
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static int min_idle[1], max_idle[] = {65535000};
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static int min_n2[] = {1}, max_n2[] = {31};
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static int min_paclen[] = {1}, max_paclen[] = {512};
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static int min_proto[1], max_proto[] = { AX25_PROTO_MAX };
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#ifdef CONFIG_AX25_DAMA_SLAVE
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static int min_ds_timeout[1], max_ds_timeout[] = {65535000};
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#endif
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static const struct ctl_table ax25_param_table[] = {
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{
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.procname = "ip_default_mode",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_ipdefmode,
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.extra2 = &max_ipdefmode
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},
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{
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.procname = "ax25_default_mode",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_axdefmode,
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.extra2 = &max_axdefmode
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},
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{
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.procname = "backoff_type",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_backoff,
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.extra2 = &max_backoff
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},
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{
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.procname = "connect_mode",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_conmode,
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.extra2 = &max_conmode
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},
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{
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.procname = "standard_window_size",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_window,
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.extra2 = &max_window
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},
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{
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.procname = "extended_window_size",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_ewindow,
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.extra2 = &max_ewindow
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},
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{
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.procname = "t1_timeout",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_t1,
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.extra2 = &max_t1
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},
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{
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.procname = "t2_timeout",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_t2,
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.extra2 = &max_t2
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},
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{
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.procname = "t3_timeout",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_t3,
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.extra2 = &max_t3
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},
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{
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.procname = "idle_timeout",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_idle,
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.extra2 = &max_idle
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},
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{
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.procname = "maximum_retry_count",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_n2,
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.extra2 = &max_n2
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},
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{
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.procname = "maximum_packet_length",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_paclen,
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.extra2 = &max_paclen
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},
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{
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.procname = "protocol",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_proto,
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.extra2 = &max_proto
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},
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#ifdef CONFIG_AX25_DAMA_SLAVE
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{
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.procname = "dama_slave_timeout",
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &min_ds_timeout,
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.extra2 = &max_ds_timeout
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},
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#endif
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{ } /* that's all, folks! */
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};
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int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
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{
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char path[sizeof("net/ax25/") + IFNAMSIZ];
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int k;
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struct ctl_table *table;
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table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
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if (!table)
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return -ENOMEM;
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for (k = 0; k < AX25_MAX_VALUES; k++)
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table[k].data = &ax25_dev->values[k];
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snprintf(path, sizeof(path), "net/ax25/%s", ax25_dev->dev->name);
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ax25_dev->sysheader = register_net_sysctl_sz(&init_net, path, table,
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ARRAY_SIZE(ax25_param_table));
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if (!ax25_dev->sysheader) {
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kfree(table);
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return -ENOMEM;
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}
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return 0;
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}
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void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev)
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{
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struct ctl_table_header *header = ax25_dev->sysheader;
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struct ctl_table *table;
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if (header) {
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ax25_dev->sysheader = NULL;
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table = header->ctl_table_arg;
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unregister_net_sysctl_table(header);
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kfree(table);
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}
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}
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