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Make more sysctl constants read-only

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This commit is contained in:
madaidan 2021-07-17 15:39:25 +00:00 committed by Kreciorek
parent fd3f9648e3
commit 6527a24e6f
11 changed files with 94 additions and 94 deletions
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8
ipc/mq_sysctl.c
View file

@ -43,11 +43,11 @@ static int proc_mq_dointvec_minmax(struct ctl_table *table, int write,
#define proc_mq_dointvec_minmax NULL
#endif
static int msg_max_limit_min = MIN_MSGMAX;
static int msg_max_limit_max = HARD_MSGMAX;
static int msg_max_limit_min __read_only = MIN_MSGMAX;
static int msg_max_limit_max __read_only = HARD_MSGMAX;
static int msg_maxsize_limit_min = MIN_MSGSIZEMAX;
static int msg_maxsize_limit_max = HARD_MSGSIZEMAX;
static int msg_maxsize_limit_min __read_only = MIN_MSGSIZEMAX;
static int msg_maxsize_limit_max __read_only = HARD_MSGSIZEMAX;
static struct ctl_table mq_sysctls[] = {
{

4
lib/test_sysctl.c
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@ -36,8 +36,8 @@
#include <linux/delay.h>
#include <linux/vmalloc.h>
static int i_zero;
static int i_one_hundred = 100;
static int i_zero __read_only;
static int i_one_hundred __read_only = 100;
struct test_sysctl_data {
int int_0001;

28
net/ax25/sysctl_net_ax25.c
View file

@ -9,21 +9,21 @@
#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 };
static int min_ipdefmode[1], max_ipdefmode[] __read_only = {1};
static int min_axdefmode[1], max_axdefmode[] __read_only = {1};
static int min_backoff[1], max_backoff[] __read_only = {2};
static int min_conmode[1], max_conmode[] __read_only = {2};
static int min_window[] __read_only = {1}, max_window[] __read_only = {7};
static int min_ewindow[] __read_only = {1}, max_ewindow[] __read_only = {63};
static int min_t1[] __read_only = {1}, max_t1[] __read_only = {30000};
static int min_t2[] __read_only = {1}, max_t2[] __read_only = {20000};
static int min_t3[1], max_t3[] __read_only = {3600000};
static int min_idle[1], max_idle[] __read_only = {65535000};
static int min_n2[] __read_only = {1}, max_n2[] __read_only = {31};
static int min_paclen[] __read_only = {1}, max_paclen[] __read_only = {512};
static int min_proto[1], max_proto[] __read_only = { AX25_PROTO_MAX };
#ifdef CONFIG_AX25_DAMA_SLAVE
static int min_ds_timeout[1], max_ds_timeout[] = {65535000};
static int min_ds_timeout[1], max_ds_timeout[] __read_only = {65535000};
#endif
static const struct ctl_table ax25_param_table[] = {

14
net/core/sysctl_net_core.c
View file

@ -22,13 +22,13 @@
#include <net/busy_poll.h>
#include <net/pkt_sched.h>
static int two = 2;
static int three = 3;
static int min_sndbuf = SOCK_MIN_SNDBUF;
static int min_rcvbuf = SOCK_MIN_RCVBUF;
static int max_skb_frags = MAX_SKB_FRAGS;
static long long_one __maybe_unused = 1;
static long long_max __maybe_unused = LONG_MAX;
static int two __read_only = 2;
static int three __read_only = 3;
static int min_sndbuf __read_only = SOCK_MIN_SNDBUF;
static int min_rcvbuf __read_only = SOCK_MIN_RCVBUF;
static int max_skb_frags __read_only = MAX_SKB_FRAGS;
static long long_one __maybe_unused __read_only = 1;
static long long_max __maybe_unused __read_only = LONG_MAX;
static int net_msg_warn; /* Unused, but still a sysctl */

42
net/ipv4/sysctl_net_ipv4.c
View file

@ -28,27 +28,27 @@
#include <net/protocol.h>
#include <net/netevent.h>
static int two = 2;
static int four = 4;
static int thousand = 1000;
static int tcp_retr1_max = 255;
static int ip_local_port_range_min[] = { 1, 1 };
static int ip_local_port_range_max[] = { 65535, 65535 };
static int tcp_adv_win_scale_min = -31;
static int tcp_adv_win_scale_max = 31;
static int tcp_min_snd_mss_min = TCP_MIN_SND_MSS;
static int tcp_min_snd_mss_max = 65535;
static int ip_privileged_port_min;
static int ip_privileged_port_max = 65535;
static int ip_ttl_min = 1;
static int ip_ttl_max = 255;
static int tcp_syn_retries_min = 1;
static int tcp_syn_retries_max = MAX_TCP_SYNCNT;
static int ip_ping_group_range_min[] = { 0, 0 };
static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
static int comp_sack_nr_max = 255;
static u32 u32_max_div_HZ = UINT_MAX / HZ;
static int one_day_secs = 24 * 3600;
static int two __read_only = 2;
static int four __read_only = 4;
static int thousand __read_only = 1000;
static int tcp_retr1_max __read_only = 255;
static int ip_local_port_range_min[] __read_only = { 1, 1 };
static int ip_local_port_range_max[] __read_only = { 65535, 65535 };
static int tcp_adv_win_scale_min __read_only = -31;
static int tcp_adv_win_scale_max __read_only = 31;
static int tcp_min_snd_mss_min __read_only = TCP_MIN_SND_MSS;
static int tcp_min_snd_mss_max __read_only = 65535;
static int ip_privileged_port_min __read_only;
static int ip_privileged_port_max __read_only = 65535;
static int ip_ttl_min __read_only = 1;
static int ip_ttl_max __read_only = 255;
static int tcp_syn_retries_min __read_only = 1;
static int tcp_syn_retries_max __read_only = MAX_TCP_SYNCNT;
static int ip_ping_group_range_min[] __read_only = { 0, 0 };
static int ip_ping_group_range_max[] __read_only = { GID_T_MAX, GID_T_MAX };
static int comp_sack_nr_max __read_only = 255;
static u32 u32_max_div_HZ __read_only = UINT_MAX / HZ;
static int one_day_secs __read_only = 24 * 3600;
/* obsolete */
static int sysctl_tcp_low_latency __read_mostly;

8
net/ipv6/sysctl_net_ipv6.c
View file

@ -21,10 +21,10 @@
#include <net/calipso.h>
#endif
static int two = 2;
static int flowlabel_reflect_max = 0x7;
static int auto_flowlabels_min;
static int auto_flowlabels_max = IP6_AUTO_FLOW_LABEL_MAX;
static int two __read_only = 2;
static int flowlabel_reflect_max __read_only = 0x7;
static int auto_flowlabels_min __read_only;
static int auto_flowlabels_max __read_only = IP6_AUTO_FLOW_LABEL_MAX;
static int proc_rt6_multipath_hash_policy(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos)

32
net/netrom/sysctl_net_netrom.c
View file

@ -12,22 +12,22 @@
/*
* Values taken from NET/ROM documentation.
*/
static int min_quality[] = {0}, max_quality[] = {255};
static int min_obs[] = {0}, max_obs[] = {255};
static int min_ttl[] = {0}, max_ttl[] = {255};
static int min_t1[] = {5 * HZ};
static int max_t1[] = {600 * HZ};
static int min_n2[] = {2}, max_n2[] = {127};
static int min_t2[] = {1 * HZ};
static int max_t2[] = {60 * HZ};
static int min_t4[] = {1 * HZ};
static int max_t4[] = {1000 * HZ};
static int min_window[] = {1}, max_window[] = {127};
static int min_idle[] = {0 * HZ};
static int max_idle[] = {65535 * HZ};
static int min_route[] = {0}, max_route[] = {1};
static int min_fails[] = {1}, max_fails[] = {10};
static int min_reset[] = {0}, max_reset[] = {1};
static int min_quality[] __read_only = {0}, max_quality[] __read_only = {255};
static int min_obs[] __read_only = {0}, max_obs[] __read_only = {255};
static int min_ttl[] __read_only = {0}, max_ttl[] __read_only = {255};
static int min_t1[] __read_only = {5 * HZ};
static int max_t1[] __read_only = {600 * HZ};
static int min_n2[] __read_only = {2}, max_n2[] __read_only = {127};
static int min_t2[] __read_only = {1 * HZ};
static int max_t2[] __read_only = {60 * HZ};
static int min_t4[] __read_only = {1 * HZ};
static int max_t4[] __read_only = {1000 * HZ};
static int min_window[] __read_only = {1}, max_window[] __read_only = {127};
static int min_idle[] __read_only = {0 * HZ};
static int max_idle[] __read_only = {65535 * HZ};
static int min_route[] __read_only = {0}, max_route[] __read_only = {1};
static int min_fails[] __read_only = {1}, max_fails[] __read_only = {10};
static int min_reset[] __read_only = {0}, max_reset[] __read_only = {1};
static struct ctl_table_header *nr_table_header;

4
net/phonet/sysctl.c
View file

@ -22,8 +22,8 @@
#define DYNAMIC_PORT_MAX 0x7f
static DEFINE_SEQLOCK(local_port_range_lock);
static int local_port_range_min[2] = {0, 0};
static int local_port_range_max[2] = {1023, 1023};
static int local_port_range_min[2] __read_only = {0, 0};
static int local_port_range_max[2] __read_only = {1023, 1023};
static int local_port_range[2] = {DYNAMIC_PORT_MIN, DYNAMIC_PORT_MAX};
static struct ctl_table_header *phonet_table_hrd;

18
net/rose/sysctl_net_rose.c
View file

@ -9,15 +9,15 @@
#include <net/ax25.h>
#include <net/rose.h>
static int min_timer[] = {1 * HZ};
static int max_timer[] = {300 * HZ};
static int min_idle[] = {0 * HZ};
static int max_idle[] = {65535 * HZ};
static int min_route[1], max_route[] = {1};
static int min_ftimer[] = {60 * HZ};
static int max_ftimer[] = {600 * HZ};
static int min_maxvcs[] = {1}, max_maxvcs[] = {254};
static int min_window[] = {1}, max_window[] = {7};
static int min_timer[] __read_only = {1 * HZ};
static int max_timer[] __read_only = {300 * HZ};
static int min_idle[] __read_only = {0 * HZ};
static int max_idle[] __read_only = {65535 * HZ};
static int min_route[1], max_route[] __read_only = {1};
static int min_ftimer[] __read_only = {60 * HZ};
static int max_ftimer[] __read_only = {600 * HZ};
static int min_maxvcs[] __read_only = {1}, max_maxvcs[] = {254};
static int min_window[] __read_only = {1}, max_window[] = {7};
static struct ctl_table_header *rose_table_header;

26
net/sctp/sysctl.c
View file

@ -25,20 +25,20 @@
#include <net/sctp/sctp.h>
#include <linux/sysctl.h>
static int timer_max = 86400000; /* ms in one day */
static int sack_timer_min = 1;
static int sack_timer_max = 500;
static int addr_scope_max = SCTP_SCOPE_POLICY_MAX;
static int rwnd_scale_max = 16;
static int rto_alpha_min = 0;
static int rto_beta_min = 0;
static int rto_alpha_max = 1000;
static int rto_beta_max = 1000;
static int pf_expose_max = SCTP_PF_EXPOSE_MAX;
static int ps_retrans_max = SCTP_PS_RETRANS_MAX;
static int timer_max __read_only = 86400000; /* ms in one day */
static int sack_timer_min __read_only = 1;
static int sack_timer_max __read_only = 500;
static int addr_scope_max __read_only = SCTP_SCOPE_POLICY_MAX;
static int rwnd_scale_max __read_only = 16;
static int rto_alpha_min __read_only = 0;
static int rto_beta_min __read_only = 0;
static int rto_alpha_max __read_only = 1000;
static int rto_beta_max __read_only = 1000;
static int pf_expose_max __read_only = SCTP_PF_EXPOSE_MAX;
static int ps_retrans_max __read_only = SCTP_PS_RETRANS_MAX;
static unsigned long max_autoclose_min = 0;
static unsigned long max_autoclose_max =
static unsigned long max_autoclose_min __read_only = 0;
static unsigned long max_autoclose_max __read_only =
(MAX_SCHEDULE_TIMEOUT / HZ > UINT_MAX)
? UINT_MAX : MAX_SCHEDULE_TIMEOUT / HZ;

4
net/x25/sysctl_net_x25.c
View file

@ -13,8 +13,8 @@
#include <linux/init.h>
#include <net/x25.h>
static int min_timer[] = { 1 * HZ };
static int max_timer[] = { 300 * HZ };
static int min_timer[] __read_only = { 1 * HZ };
static int max_timer[] __read_only = { 300 * HZ };
static struct ctl_table_header *x25_table_header;