Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* -*- linux-c -*- |
| 2 | * sysctl_net_core.c: sysctl interface to net core subsystem. |
| 3 | * |
| 4 | * Begun April 1, 1996, Mike Shaver. |
| 5 | * Added /proc/sys/net/core directory entry (empty =) ). [MS] |
| 6 | */ |
| 7 | |
| 8 | #include <linux/mm.h> |
| 9 | #include <linux/sysctl.h> |
| 10 | #include <linux/config.h> |
| 11 | #include <linux/module.h> |
| 12 | |
| 13 | #ifdef CONFIG_SYSCTL |
| 14 | |
| 15 | extern int netdev_max_backlog; |
| 16 | extern int weight_p; |
| 17 | extern int no_cong_thresh; |
| 18 | extern int no_cong; |
| 19 | extern int lo_cong; |
| 20 | extern int mod_cong; |
| 21 | extern int netdev_fastroute; |
| 22 | extern int net_msg_cost; |
| 23 | extern int net_msg_burst; |
| 24 | |
| 25 | extern __u32 sysctl_wmem_max; |
| 26 | extern __u32 sysctl_rmem_max; |
| 27 | extern __u32 sysctl_wmem_default; |
| 28 | extern __u32 sysctl_rmem_default; |
| 29 | |
| 30 | extern int sysctl_core_destroy_delay; |
| 31 | extern int sysctl_optmem_max; |
| 32 | extern int sysctl_somaxconn; |
| 33 | |
| 34 | #ifdef CONFIG_NET_DIVERT |
| 35 | extern char sysctl_divert_version[]; |
| 36 | #endif /* CONFIG_NET_DIVERT */ |
| 37 | |
| 38 | /* |
| 39 | * This strdup() is used for creating copies of network |
| 40 | * device names to be handed over to sysctl. |
| 41 | */ |
| 42 | |
| 43 | char *net_sysctl_strdup(const char *s) |
| 44 | { |
| 45 | char *rv = kmalloc(strlen(s)+1, GFP_KERNEL); |
| 46 | if (rv) |
| 47 | strcpy(rv, s); |
| 48 | return rv; |
| 49 | } |
| 50 | |
| 51 | ctl_table core_table[] = { |
| 52 | #ifdef CONFIG_NET |
| 53 | { |
| 54 | .ctl_name = NET_CORE_WMEM_MAX, |
| 55 | .procname = "wmem_max", |
| 56 | .data = &sysctl_wmem_max, |
| 57 | .maxlen = sizeof(int), |
| 58 | .mode = 0644, |
| 59 | .proc_handler = &proc_dointvec |
| 60 | }, |
| 61 | { |
| 62 | .ctl_name = NET_CORE_RMEM_MAX, |
| 63 | .procname = "rmem_max", |
| 64 | .data = &sysctl_rmem_max, |
| 65 | .maxlen = sizeof(int), |
| 66 | .mode = 0644, |
| 67 | .proc_handler = &proc_dointvec |
| 68 | }, |
| 69 | { |
| 70 | .ctl_name = NET_CORE_WMEM_DEFAULT, |
| 71 | .procname = "wmem_default", |
| 72 | .data = &sysctl_wmem_default, |
| 73 | .maxlen = sizeof(int), |
| 74 | .mode = 0644, |
| 75 | .proc_handler = &proc_dointvec |
| 76 | }, |
| 77 | { |
| 78 | .ctl_name = NET_CORE_RMEM_DEFAULT, |
| 79 | .procname = "rmem_default", |
| 80 | .data = &sysctl_rmem_default, |
| 81 | .maxlen = sizeof(int), |
| 82 | .mode = 0644, |
| 83 | .proc_handler = &proc_dointvec |
| 84 | }, |
| 85 | { |
| 86 | .ctl_name = NET_CORE_DEV_WEIGHT, |
| 87 | .procname = "dev_weight", |
| 88 | .data = &weight_p, |
| 89 | .maxlen = sizeof(int), |
| 90 | .mode = 0644, |
| 91 | .proc_handler = &proc_dointvec |
| 92 | }, |
| 93 | { |
| 94 | .ctl_name = NET_CORE_MAX_BACKLOG, |
| 95 | .procname = "netdev_max_backlog", |
| 96 | .data = &netdev_max_backlog, |
| 97 | .maxlen = sizeof(int), |
| 98 | .mode = 0644, |
| 99 | .proc_handler = &proc_dointvec |
| 100 | }, |
| 101 | { |
| 102 | .ctl_name = NET_CORE_NO_CONG_THRESH, |
| 103 | .procname = "no_cong_thresh", |
| 104 | .data = &no_cong_thresh, |
| 105 | .maxlen = sizeof(int), |
| 106 | .mode = 0644, |
| 107 | .proc_handler = &proc_dointvec |
| 108 | }, |
| 109 | { |
| 110 | .ctl_name = NET_CORE_NO_CONG, |
| 111 | .procname = "no_cong", |
| 112 | .data = &no_cong, |
| 113 | .maxlen = sizeof(int), |
| 114 | .mode = 0644, |
| 115 | .proc_handler = &proc_dointvec |
| 116 | }, |
| 117 | { |
| 118 | .ctl_name = NET_CORE_LO_CONG, |
| 119 | .procname = "lo_cong", |
| 120 | .data = &lo_cong, |
| 121 | .maxlen = sizeof(int), |
| 122 | .mode = 0644, |
| 123 | .proc_handler = &proc_dointvec |
| 124 | }, |
| 125 | { |
| 126 | .ctl_name = NET_CORE_MOD_CONG, |
| 127 | .procname = "mod_cong", |
| 128 | .data = &mod_cong, |
| 129 | .maxlen = sizeof(int), |
| 130 | .mode = 0644, |
| 131 | .proc_handler = &proc_dointvec |
| 132 | }, |
| 133 | { |
| 134 | .ctl_name = NET_CORE_MSG_COST, |
| 135 | .procname = "message_cost", |
| 136 | .data = &net_msg_cost, |
| 137 | .maxlen = sizeof(int), |
| 138 | .mode = 0644, |
| 139 | .proc_handler = &proc_dointvec_jiffies, |
| 140 | .strategy = &sysctl_jiffies, |
| 141 | }, |
| 142 | { |
| 143 | .ctl_name = NET_CORE_MSG_BURST, |
| 144 | .procname = "message_burst", |
| 145 | .data = &net_msg_burst, |
| 146 | .maxlen = sizeof(int), |
| 147 | .mode = 0644, |
| 148 | .proc_handler = &proc_dointvec, |
| 149 | }, |
| 150 | { |
| 151 | .ctl_name = NET_CORE_OPTMEM_MAX, |
| 152 | .procname = "optmem_max", |
| 153 | .data = &sysctl_optmem_max, |
| 154 | .maxlen = sizeof(int), |
| 155 | .mode = 0644, |
| 156 | .proc_handler = &proc_dointvec |
| 157 | }, |
| 158 | #ifdef CONFIG_NET_DIVERT |
| 159 | { |
| 160 | .ctl_name = NET_CORE_DIVERT_VERSION, |
| 161 | .procname = "divert_version", |
| 162 | .data = (void *)sysctl_divert_version, |
| 163 | .maxlen = 32, |
| 164 | .mode = 0444, |
| 165 | .proc_handler = &proc_dostring |
| 166 | }, |
| 167 | #endif /* CONFIG_NET_DIVERT */ |
| 168 | #endif /* CONFIG_NET */ |
| 169 | { |
| 170 | .ctl_name = NET_CORE_SOMAXCONN, |
| 171 | .procname = "somaxconn", |
| 172 | .data = &sysctl_somaxconn, |
| 173 | .maxlen = sizeof(int), |
| 174 | .mode = 0644, |
| 175 | .proc_handler = &proc_dointvec |
| 176 | }, |
| 177 | { .ctl_name = 0 } |
| 178 | }; |
| 179 | |
| 180 | EXPORT_SYMBOL(net_sysctl_strdup); |
| 181 | |
| 182 | #endif |