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113 lines
2.6 KiB
113 lines
2.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* net/dccp/sysctl.c |
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* |
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* An implementation of the DCCP protocol |
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* Arnaldo Carvalho de Melo <[email protected]> |
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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 "dccp.h" |
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#include "feat.h" |
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#ifndef CONFIG_SYSCTL |
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#error This file should not be compiled without CONFIG_SYSCTL defined |
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#endif |
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/* Boundary values */ |
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static int u8_max = 0xFF; |
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static unsigned long seqw_min = DCCPF_SEQ_WMIN, |
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seqw_max = 0xFFFFFFFF; /* maximum on 32 bit */ |
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static struct ctl_table dccp_default_table[] = { |
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{ |
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.procname = "seq_window", |
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.data = &sysctl_dccp_sequence_window, |
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.maxlen = sizeof(sysctl_dccp_sequence_window), |
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.mode = 0644, |
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.proc_handler = proc_doulongvec_minmax, |
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.extra1 = &seqw_min, /* RFC 4340, 7.5.2 */ |
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.extra2 = &seqw_max, |
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}, |
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{ |
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.procname = "rx_ccid", |
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.data = &sysctl_dccp_rx_ccid, |
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.maxlen = sizeof(sysctl_dccp_rx_ccid), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ZERO, |
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.extra2 = &u8_max, /* RFC 4340, 10. */ |
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}, |
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{ |
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.procname = "tx_ccid", |
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.data = &sysctl_dccp_tx_ccid, |
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.maxlen = sizeof(sysctl_dccp_tx_ccid), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ZERO, |
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.extra2 = &u8_max, /* RFC 4340, 10. */ |
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}, |
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{ |
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.procname = "request_retries", |
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.data = &sysctl_dccp_request_retries, |
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.maxlen = sizeof(sysctl_dccp_request_retries), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ONE, |
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.extra2 = &u8_max, |
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}, |
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{ |
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.procname = "retries1", |
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.data = &sysctl_dccp_retries1, |
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.maxlen = sizeof(sysctl_dccp_retries1), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ZERO, |
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.extra2 = &u8_max, |
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}, |
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{ |
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.procname = "retries2", |
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.data = &sysctl_dccp_retries2, |
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.maxlen = sizeof(sysctl_dccp_retries2), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ZERO, |
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.extra2 = &u8_max, |
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}, |
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{ |
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.procname = "tx_qlen", |
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.data = &sysctl_dccp_tx_qlen, |
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.maxlen = sizeof(sysctl_dccp_tx_qlen), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_minmax, |
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.extra1 = SYSCTL_ZERO, |
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}, |
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{ |
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.procname = "sync_ratelimit", |
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.data = &sysctl_dccp_sync_ratelimit, |
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.maxlen = sizeof(sysctl_dccp_sync_ratelimit), |
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.mode = 0644, |
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.proc_handler = proc_dointvec_ms_jiffies, |
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}, |
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{ } |
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}; |
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static struct ctl_table_header *dccp_table_header; |
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int __init dccp_sysctl_init(void) |
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{ |
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dccp_table_header = register_net_sysctl(&init_net, "net/dccp/default", |
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dccp_default_table); |
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return dccp_table_header != NULL ? 0 : -ENOMEM; |
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} |
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void dccp_sysctl_exit(void) |
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{ |
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if (dccp_table_header != NULL) { |
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unregister_net_sysctl_table(dccp_table_header); |
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dccp_table_header = NULL; |
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} |
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}
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