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73dbd8cf79
This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)
To avoid lots of small commits, this commit brings together network
changes from (as they appear in MAINTAINERS) LLC, MPTCP, NETROM NETWORK
LAYER, PHONET PROTOCOL, ROSE NETWORK LAYER, RXRPC SOCKETS, SCTP
PROTOCOL, SHARED MEMORY COMMUNICATIONS (SMC), TIPC NETWORK LAYER and
NETWORKING [IPSEC]
* Remove sentinel element from ctl_table structs.
* Replace empty array registration with the register_net_sysctl_sz call
in llc_sysctl_init
* Replace the for loop stop condition that tests for procname == NULL
with one that depends on array size in sctp_sysctl_net_register
* Remove instances where an array element is zeroed out to make it look
like a sentinel in xfrm_sysctl_init. This is not longer needed and is
safe after commit c899710fe7 ("networking: Update to
register_net_sysctl_sz") added the array size to the ctl_table
registration
* Use a table_size variable to keep the value of ARRAY_SIZE
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
157 lines
4.0 KiB
C
157 lines
4.0 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/sysctl.h>
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#include <linux/init.h>
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#include <net/ax25.h>
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#include <net/netrom.h>
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/*
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* Values taken from NET/ROM documentation.
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*/
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static int min_quality[] = {0}, max_quality[] = {255};
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static int min_obs[] = {0}, max_obs[] = {255};
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static int min_ttl[] = {0}, max_ttl[] = {255};
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static int min_t1[] = {5 * HZ};
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static int max_t1[] = {600 * HZ};
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static int min_n2[] = {2}, max_n2[] = {127};
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static int min_t2[] = {1 * HZ};
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static int max_t2[] = {60 * HZ};
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static int min_t4[] = {1 * HZ};
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static int max_t4[] = {1000 * HZ};
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static int min_window[] = {1}, max_window[] = {127};
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static int min_idle[] = {0 * HZ};
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static int max_idle[] = {65535 * HZ};
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static int min_route[] = {0}, max_route[] = {1};
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static int min_fails[] = {1}, max_fails[] = {10};
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static int min_reset[] = {0}, max_reset[] = {1};
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static struct ctl_table_header *nr_table_header;
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static struct ctl_table nr_table[] = {
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{
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.procname = "default_path_quality",
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.data = &sysctl_netrom_default_path_quality,
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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_quality,
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.extra2 = &max_quality
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},
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{
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.procname = "obsolescence_count_initialiser",
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.data = &sysctl_netrom_obsolescence_count_initialiser,
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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_obs,
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.extra2 = &max_obs
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},
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{
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.procname = "network_ttl_initialiser",
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.data = &sysctl_netrom_network_ttl_initialiser,
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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_ttl,
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.extra2 = &max_ttl
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},
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{
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.procname = "transport_timeout",
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.data = &sysctl_netrom_transport_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 = "transport_maximum_tries",
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.data = &sysctl_netrom_transport_maximum_tries,
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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 = "transport_acknowledge_delay",
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.data = &sysctl_netrom_transport_acknowledge_delay,
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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 = "transport_busy_delay",
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.data = &sysctl_netrom_transport_busy_delay,
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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_t4,
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.extra2 = &max_t4
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},
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{
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.procname = "transport_requested_window_size",
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.data = &sysctl_netrom_transport_requested_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 = "transport_no_activity_timeout",
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.data = &sysctl_netrom_transport_no_activity_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 = "routing_control",
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.data = &sysctl_netrom_routing_control,
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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_route,
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.extra2 = &max_route
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},
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{
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.procname = "link_fails_count",
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.data = &sysctl_netrom_link_fails_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_fails,
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.extra2 = &max_fails
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},
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{
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.procname = "reset",
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.data = &sysctl_netrom_reset_circuit,
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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_reset,
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.extra2 = &max_reset
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},
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};
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int __init nr_register_sysctl(void)
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{
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nr_table_header = register_net_sysctl(&init_net, "net/netrom", nr_table);
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if (!nr_table_header)
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return -ENOMEM;
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return 0;
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}
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void nr_unregister_sysctl(void)
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{
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unregister_net_sysctl_table(nr_table_header);
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}
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