1e55d912fSArnaldo Carvalho de Melo /* 2e55d912fSArnaldo Carvalho de Melo * net/dccp/sysctl.c 3e55d912fSArnaldo Carvalho de Melo * 4e55d912fSArnaldo Carvalho de Melo * An implementation of the DCCP protocol 5e55d912fSArnaldo Carvalho de Melo * Arnaldo Carvalho de Melo <acme@mandriva.com> 6e55d912fSArnaldo Carvalho de Melo * 7e55d912fSArnaldo Carvalho de Melo * This program is free software; you can redistribute it and/or 8e55d912fSArnaldo Carvalho de Melo * modify it under the terms of the GNU General Public License v2 9e55d912fSArnaldo Carvalho de Melo * as published by the Free Software Foundation. 10e55d912fSArnaldo Carvalho de Melo */ 11e55d912fSArnaldo Carvalho de Melo 12e55d912fSArnaldo Carvalho de Melo #include <linux/mm.h> 13e55d912fSArnaldo Carvalho de Melo #include <linux/sysctl.h> 142e2e9e92SGerrit Renker #include "dccp.h" 152a0109a7SIan McDonald #include "feat.h" 16e55d912fSArnaldo Carvalho de Melo 17e55d912fSArnaldo Carvalho de Melo #ifndef CONFIG_SYSCTL 18e55d912fSArnaldo Carvalho de Melo #error This file should not be compiled without CONFIG_SYSCTL defined 19e55d912fSArnaldo Carvalho de Melo #endif 20e55d912fSArnaldo Carvalho de Melo 21*a94f0f97SGerrit Renker /* rate-limit for syncs in reply to sequence-invalid packets; RFC 4340, 7.5.4 */ 22*a94f0f97SGerrit Renker int sysctl_dccp_sync_ratelimit __read_mostly = HZ / 8; 23*a94f0f97SGerrit Renker 24e55d912fSArnaldo Carvalho de Melo static struct ctl_table dccp_default_table[] = { 25e55d912fSArnaldo Carvalho de Melo { 26e55d912fSArnaldo Carvalho de Melo .procname = "seq_window", 27afb0a34dSGerrit Renker .data = &sysctl_dccp_feat_sequence_window, 28afb0a34dSGerrit Renker .maxlen = sizeof(sysctl_dccp_feat_sequence_window), 29e55d912fSArnaldo Carvalho de Melo .mode = 0644, 30e55d912fSArnaldo Carvalho de Melo .proc_handler = proc_dointvec, 31e55d912fSArnaldo Carvalho de Melo }, 32e55d912fSArnaldo Carvalho de Melo { 33e55d912fSArnaldo Carvalho de Melo .procname = "rx_ccid", 34afb0a34dSGerrit Renker .data = &sysctl_dccp_feat_rx_ccid, 35afb0a34dSGerrit Renker .maxlen = sizeof(sysctl_dccp_feat_rx_ccid), 36e55d912fSArnaldo Carvalho de Melo .mode = 0644, 37e55d912fSArnaldo Carvalho de Melo .proc_handler = proc_dointvec, 38e55d912fSArnaldo Carvalho de Melo }, 39e55d912fSArnaldo Carvalho de Melo { 40e55d912fSArnaldo Carvalho de Melo .procname = "tx_ccid", 41afb0a34dSGerrit Renker .data = &sysctl_dccp_feat_tx_ccid, 42afb0a34dSGerrit Renker .maxlen = sizeof(sysctl_dccp_feat_tx_ccid), 43e55d912fSArnaldo Carvalho de Melo .mode = 0644, 44e55d912fSArnaldo Carvalho de Melo .proc_handler = proc_dointvec, 45e55d912fSArnaldo Carvalho de Melo }, 46e55d912fSArnaldo Carvalho de Melo { 47e55d912fSArnaldo Carvalho de Melo .procname = "ack_ratio", 48afb0a34dSGerrit Renker .data = &sysctl_dccp_feat_ack_ratio, 49afb0a34dSGerrit Renker .maxlen = sizeof(sysctl_dccp_feat_ack_ratio), 50e55d912fSArnaldo Carvalho de Melo .mode = 0644, 51e55d912fSArnaldo Carvalho de Melo .proc_handler = proc_dointvec, 52e55d912fSArnaldo Carvalho de Melo }, 53e55d912fSArnaldo Carvalho de Melo { 54e55d912fSArnaldo Carvalho de Melo .procname = "send_ackvec", 55afb0a34dSGerrit Renker .data = &sysctl_dccp_feat_send_ack_vector, 56afb0a34dSGerrit Renker .maxlen = sizeof(sysctl_dccp_feat_send_ack_vector), 57e55d912fSArnaldo Carvalho de Melo .mode = 0644, 58e55d912fSArnaldo Carvalho de Melo .proc_handler = proc_dointvec, 59e55d912fSArnaldo Carvalho de Melo }, 60e55d912fSArnaldo Carvalho de Melo { 61e55d912fSArnaldo Carvalho de Melo .procname = "send_ndp", 62afb0a34dSGerrit Renker .data = &sysctl_dccp_feat_send_ndp_count, 63afb0a34dSGerrit Renker .maxlen = sizeof(sysctl_dccp_feat_send_ndp_count), 64e55d912fSArnaldo Carvalho de Melo .mode = 0644, 65e55d912fSArnaldo Carvalho de Melo .proc_handler = proc_dointvec, 66e55d912fSArnaldo Carvalho de Melo }, 672e2e9e92SGerrit Renker { 682e2e9e92SGerrit Renker .procname = "request_retries", 692e2e9e92SGerrit Renker .data = &sysctl_dccp_request_retries, 702e2e9e92SGerrit Renker .maxlen = sizeof(sysctl_dccp_request_retries), 712e2e9e92SGerrit Renker .mode = 0644, 722e2e9e92SGerrit Renker .proc_handler = proc_dointvec, 732e2e9e92SGerrit Renker }, 742e2e9e92SGerrit Renker { 752e2e9e92SGerrit Renker .procname = "retries1", 762e2e9e92SGerrit Renker .data = &sysctl_dccp_retries1, 772e2e9e92SGerrit Renker .maxlen = sizeof(sysctl_dccp_retries1), 782e2e9e92SGerrit Renker .mode = 0644, 792e2e9e92SGerrit Renker .proc_handler = proc_dointvec, 802e2e9e92SGerrit Renker }, 812e2e9e92SGerrit Renker { 822e2e9e92SGerrit Renker .procname = "retries2", 832e2e9e92SGerrit Renker .data = &sysctl_dccp_retries2, 842e2e9e92SGerrit Renker .maxlen = sizeof(sysctl_dccp_retries2), 852e2e9e92SGerrit Renker .mode = 0644, 862e2e9e92SGerrit Renker .proc_handler = proc_dointvec, 872e2e9e92SGerrit Renker }, 8882e3ab9dSIan McDonald { 8982e3ab9dSIan McDonald .procname = "tx_qlen", 9082e3ab9dSIan McDonald .data = &sysctl_dccp_tx_qlen, 9182e3ab9dSIan McDonald .maxlen = sizeof(sysctl_dccp_tx_qlen), 9282e3ab9dSIan McDonald .mode = 0644, 9382e3ab9dSIan McDonald .proc_handler = proc_dointvec, 9482e3ab9dSIan McDonald }, 95*a94f0f97SGerrit Renker { 96*a94f0f97SGerrit Renker .procname = "sync_ratelimit", 97*a94f0f97SGerrit Renker .data = &sysctl_dccp_sync_ratelimit, 98*a94f0f97SGerrit Renker .maxlen = sizeof(sysctl_dccp_sync_ratelimit), 99*a94f0f97SGerrit Renker .mode = 0644, 100*a94f0f97SGerrit Renker .proc_handler = proc_dointvec_ms_jiffies, 101*a94f0f97SGerrit Renker }, 10282e3ab9dSIan McDonald 103e55d912fSArnaldo Carvalho de Melo { .ctl_name = 0, } 104e55d912fSArnaldo Carvalho de Melo }; 105e55d912fSArnaldo Carvalho de Melo 106e55d912fSArnaldo Carvalho de Melo static struct ctl_table dccp_table[] = { 107e55d912fSArnaldo Carvalho de Melo { 108e55d912fSArnaldo Carvalho de Melo .ctl_name = NET_DCCP_DEFAULT, 109e55d912fSArnaldo Carvalho de Melo .procname = "default", 110e55d912fSArnaldo Carvalho de Melo .mode = 0555, 111e55d912fSArnaldo Carvalho de Melo .child = dccp_default_table, 112e55d912fSArnaldo Carvalho de Melo }, 113e55d912fSArnaldo Carvalho de Melo { .ctl_name = 0, }, 114e55d912fSArnaldo Carvalho de Melo }; 115e55d912fSArnaldo Carvalho de Melo 116e55d912fSArnaldo Carvalho de Melo static struct ctl_table dccp_dir_table[] = { 117e55d912fSArnaldo Carvalho de Melo { 118e55d912fSArnaldo Carvalho de Melo .ctl_name = NET_DCCP, 119e55d912fSArnaldo Carvalho de Melo .procname = "dccp", 120e55d912fSArnaldo Carvalho de Melo .mode = 0555, 121e55d912fSArnaldo Carvalho de Melo .child = dccp_table, 122e55d912fSArnaldo Carvalho de Melo }, 123e55d912fSArnaldo Carvalho de Melo { .ctl_name = 0, }, 124e55d912fSArnaldo Carvalho de Melo }; 125e55d912fSArnaldo Carvalho de Melo 126e55d912fSArnaldo Carvalho de Melo static struct ctl_table dccp_root_table[] = { 127e55d912fSArnaldo Carvalho de Melo { 128e55d912fSArnaldo Carvalho de Melo .ctl_name = CTL_NET, 129e55d912fSArnaldo Carvalho de Melo .procname = "net", 130e55d912fSArnaldo Carvalho de Melo .mode = 0555, 131e55d912fSArnaldo Carvalho de Melo .child = dccp_dir_table, 132e55d912fSArnaldo Carvalho de Melo }, 133e55d912fSArnaldo Carvalho de Melo { .ctl_name = 0, }, 134e55d912fSArnaldo Carvalho de Melo }; 135e55d912fSArnaldo Carvalho de Melo 136e55d912fSArnaldo Carvalho de Melo static struct ctl_table_header *dccp_table_header; 137e55d912fSArnaldo Carvalho de Melo 138e55d912fSArnaldo Carvalho de Melo int __init dccp_sysctl_init(void) 139e55d912fSArnaldo Carvalho de Melo { 1400b4d4147SEric W. Biederman dccp_table_header = register_sysctl_table(dccp_root_table); 141e55d912fSArnaldo Carvalho de Melo 142e55d912fSArnaldo Carvalho de Melo return dccp_table_header != NULL ? 0 : -ENOMEM; 143e55d912fSArnaldo Carvalho de Melo } 144e55d912fSArnaldo Carvalho de Melo 145e55d912fSArnaldo Carvalho de Melo void dccp_sysctl_exit(void) 146e55d912fSArnaldo Carvalho de Melo { 147e55d912fSArnaldo Carvalho de Melo if (dccp_table_header != NULL) { 148e55d912fSArnaldo Carvalho de Melo unregister_sysctl_table(dccp_table_header); 149e55d912fSArnaldo Carvalho de Melo dccp_table_header = NULL; 150e55d912fSArnaldo Carvalho de Melo } 151e55d912fSArnaldo Carvalho de Melo } 152