^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * net/dccp/sysctl.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * An implementation of the DCCP protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Arnaldo Carvalho de Melo <acme@mandriva.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/sysctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "dccp.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "feat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #ifndef CONFIG_SYSCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #error This file should not be compiled without CONFIG_SYSCTL defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) /* Boundary values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static int u8_max = 0xFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static unsigned long seqw_min = DCCPF_SEQ_WMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) seqw_max = 0xFFFFFFFF; /* maximum on 32 bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static struct ctl_table dccp_default_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .procname = "seq_window",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .data = &sysctl_dccp_sequence_window,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) .maxlen = sizeof(sysctl_dccp_sequence_window),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .proc_handler = proc_doulongvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .extra1 = &seqw_min, /* RFC 4340, 7.5.2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .extra2 = &seqw_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) .procname = "rx_ccid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .data = &sysctl_dccp_rx_ccid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .maxlen = sizeof(sysctl_dccp_rx_ccid),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .extra1 = SYSCTL_ZERO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) .extra2 = &u8_max, /* RFC 4340, 10. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .procname = "tx_ccid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .data = &sysctl_dccp_tx_ccid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) .maxlen = sizeof(sysctl_dccp_tx_ccid),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .extra1 = SYSCTL_ZERO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) .extra2 = &u8_max, /* RFC 4340, 10. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .procname = "request_retries",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .data = &sysctl_dccp_request_retries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) .maxlen = sizeof(sysctl_dccp_request_retries),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .extra1 = SYSCTL_ONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .extra2 = &u8_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .procname = "retries1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .data = &sysctl_dccp_retries1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .maxlen = sizeof(sysctl_dccp_retries1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .extra1 = SYSCTL_ZERO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .extra2 = &u8_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .procname = "retries2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .data = &sysctl_dccp_retries2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .maxlen = sizeof(sysctl_dccp_retries2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .extra1 = SYSCTL_ZERO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .extra2 = &u8_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .procname = "tx_qlen",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .data = &sysctl_dccp_tx_qlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .maxlen = sizeof(sysctl_dccp_tx_qlen),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .proc_handler = proc_dointvec_minmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .extra1 = SYSCTL_ZERO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .procname = "sync_ratelimit",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .data = &sysctl_dccp_sync_ratelimit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .maxlen = sizeof(sysctl_dccp_sync_ratelimit),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .mode = 0644,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .proc_handler = proc_dointvec_ms_jiffies,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static struct ctl_table_header *dccp_table_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) int __init dccp_sysctl_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) dccp_table_header = register_net_sysctl(&init_net, "net/dccp/default",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) dccp_default_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return dccp_table_header != NULL ? 0 : -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) void dccp_sysctl_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (dccp_table_header != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) unregister_net_sysctl_table(dccp_table_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) dccp_table_header = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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