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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9
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10
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11 /* FreeBSD 3.0 at least */
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10
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12 char ngx_freebsd_kern_ostype[16];
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13 char ngx_freebsd_kern_osrelease[128];
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0
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14 int ngx_freebsd_kern_osreldate;
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15 int ngx_freebsd_hw_ncpu;
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16 int ngx_freebsd_net_inet_tcp_sendspace;
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50
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17 int ngx_freebsd_kern_ipc_somaxconn;
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0
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18
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19 /* FreeBSD 4.9 */
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20 int ngx_freebsd_machdep_hlt_logical_cpus;
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21
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22 /* FreeBSD 5.0 */
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23 int ngx_freebsd_kern_ipc_zero_copy_send;
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24
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25
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26 ngx_uint_t ngx_freebsd_sendfile_nbytes_bug;
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27 ngx_uint_t ngx_freebsd_use_tcp_nopush;
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28
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29
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88
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30 static ngx_os_io_t ngx_freebsd_io = {
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0
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31 ngx_unix_recv,
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32 ngx_readv_chain,
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33 ngx_unix_send,
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18
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34 #if (NGX_HAVE_SENDFILE)
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0
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35 ngx_freebsd_sendfile_chain,
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36 NGX_IO_SENDFILE
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37 #else
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38 ngx_writev_chain,
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39 0
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40 #endif
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41 };
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42
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43
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44 typedef struct {
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45 char *name;
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46 int *value;
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47 size_t size;
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48 ngx_uint_t exists;
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49 } sysctl_t;
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50
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51
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52 sysctl_t sysctls[] = {
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53 { "hw.ncpu",
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54 &ngx_freebsd_hw_ncpu,
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55 sizeof(int), 0 },
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56
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57 { "machdep.hlt_logical_cpus",
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58 &ngx_freebsd_machdep_hlt_logical_cpus,
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59 sizeof(int), 0 },
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60
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61 { "net.inet.tcp.sendspace",
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62 &ngx_freebsd_net_inet_tcp_sendspace,
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63 sizeof(int), 0 },
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64
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50
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65 { "kern.ipc.somaxconn",
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66 &ngx_freebsd_kern_ipc_somaxconn,
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67 sizeof(int), 0 },
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68
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0
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69 { "kern.ipc.zero_copy.send",
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70 &ngx_freebsd_kern_ipc_zero_copy_send,
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71 sizeof(int), 0 },
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72
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73 { NULL, NULL, 0, 0 }
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74 };
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75
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76
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88
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77 void
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78 ngx_debug_init()
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0
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79 {
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96
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80 #if (NGX_DEBUG_MALLOC)
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0
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81
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82 #if __FreeBSD_version >= 500014
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83 _malloc_options = "J";
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84 #else
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85 malloc_options = "J";
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86 #endif
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87
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88 #endif
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89 }
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90
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91
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88
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92 ngx_int_t
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93 ngx_os_specific_init(ngx_log_t *log)
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0
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94 {
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50
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95 int version, somaxconn;
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0
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96 size_t size;
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97 ngx_err_t err;
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98 ngx_uint_t i;
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99
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100 size = sizeof(ngx_freebsd_kern_ostype);
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101 if (sysctlbyname("kern.ostype",
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102 ngx_freebsd_kern_ostype, &size, NULL, 0) == -1) {
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103 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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104 "sysctlbyname(kern.ostype) failed");
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10
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105
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106 if (ngx_errno != NGX_ENOMEM) {
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107 return NGX_ERROR;
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108 }
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109
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110 ngx_freebsd_kern_ostype[size - 1] = '\0';
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0
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111 }
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112
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113 size = sizeof(ngx_freebsd_kern_osrelease);
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114 if (sysctlbyname("kern.osrelease",
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115 ngx_freebsd_kern_osrelease, &size, NULL, 0) == -1) {
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116 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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117 "sysctlbyname(kern.osrelease) failed");
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10
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118
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119 if (ngx_errno != NGX_ENOMEM) {
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120 return NGX_ERROR;
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121 }
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122
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123 ngx_freebsd_kern_osrelease[size - 1] = '\0';
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0
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124 }
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125
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126
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127 size = sizeof(int);
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128 if (sysctlbyname("kern.osreldate",
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129 &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) {
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130 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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131 "sysctlbyname(kern.osreldate) failed");
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132 return NGX_ERROR;
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133 }
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134
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135 version = ngx_freebsd_kern_osreldate;
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136
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137
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18
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138 #if (NGX_HAVE_SENDFILE)
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0
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139
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140 /*
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141 * The determination of the sendfile() "nbytes bug" is complex enough.
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142 * There are two sendfile() syscalls: a new #393 has no bug while
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143 * an old #336 has the bug in some versions and has not in others.
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144 * Besides libc_r wrapper also emulates the bug in some versions.
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145 * There is no way to say exactly if syscall #336 in FreeBSD circa 4.6
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146 * has the bug. We use the algorithm that is correct at least for
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147 * RELEASEs and for syscalls only (not libc_r wrapper).
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148 *
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149 * 4.6.1-RELEASE and below have the bug
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150 * 4.6.2-RELEASE and above have the new syscall
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151 *
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152 * We detect the new sendfile() syscall available at the compile time
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153 * to allow an old binary to run correctly on an updated FreeBSD system.
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154 */
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155
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156 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \
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157 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039
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158
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159 /* a new syscall without the bug */
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160
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161 ngx_freebsd_sendfile_nbytes_bug = 0;
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162
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163 #else
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164
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165 /* an old syscall that may have the bug */
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166
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167 ngx_freebsd_sendfile_nbytes_bug = 1;
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168
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169 #endif
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170
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18
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171 #endif /* NGX_HAVE_SENDFILE */
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0
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172
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173
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174 if ((version < 500000 && version >= 440003) || version >= 500017) {
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175 ngx_freebsd_use_tcp_nopush = 1;
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176 }
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177
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178
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179 for (i = 0; sysctls[i].name; i++) {
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180 *sysctls[i].value = 0;
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181 size = sysctls[i].size;
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182
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183 if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0)
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184 == 0)
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185 {
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186 sysctls[i].exists = 1;
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187 continue;
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188 }
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189
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190 err = ngx_errno;
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191
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192 if (err == NGX_ENOENT) {
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193 continue;
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194 }
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195
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196 #if 0
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197 if (sysctls[i].value == &ngx_freebsd_machdep_hlt_logical_cpus) {
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198 continue;
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199 }
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200 #endif
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201
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202 ngx_log_error(NGX_LOG_ALERT, log, err,
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203 "sysctlbyname(%s) failed", sysctls[i].name);
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204 return NGX_ERROR;
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205 }
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206
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207 if (ngx_freebsd_machdep_hlt_logical_cpus) {
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208 ngx_ncpu = ngx_freebsd_hw_ncpu / 2;
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209 } else {
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210 ngx_ncpu = ngx_freebsd_hw_ncpu;
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211 }
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212
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50
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213 if (version < 600008) {
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214 somaxconn = 32767;
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215 } else {
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216 somaxconn = 65535;
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217 }
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218
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219 if (ngx_freebsd_kern_ipc_somaxconn > somaxconn) {
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220 ngx_log_error(NGX_LOG_ALERT, log, 0,
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221 "sysctl kern.ipc.somaxconn must be no more than %d",
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222 somaxconn);
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223 return NGX_ERROR;
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224 }
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2
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225
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22
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226 ngx_tcp_nodelay_and_tcp_nopush = 1;
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227
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88
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228 ngx_os_io = ngx_freebsd_io;
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22
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229
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88
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230 return NGX_OK;
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0
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231 }
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232
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233
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88
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234 void
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235 ngx_os_specific_status(ngx_log_t *log)
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0
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236 {
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237 ngx_uint_t i;
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238
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80
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239 ngx_log_error(NGX_LOG_NOTICE, log, 0, "OS: %s %s",
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0
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240 ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease);
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241
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242 #ifdef __DragonFly_version
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80
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243 ngx_log_error(NGX_LOG_NOTICE, log, 0,
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0
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244 "kern.osreldate: %d, built on %d",
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245 ngx_freebsd_kern_osreldate, __DragonFly_version);
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246 #else
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80
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247 ngx_log_error(NGX_LOG_NOTICE, log, 0,
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0
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248 "kern.osreldate: %d, built on %d",
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249 ngx_freebsd_kern_osreldate, __FreeBSD_version);
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250 #endif
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251
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252 for (i = 0; sysctls[i].name; i++) {
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253 if (sysctls[i].exists) {
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80
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254 ngx_log_error(NGX_LOG_NOTICE, log, 0, "%s: %d",
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0
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255 sysctls[i].name, *sysctls[i].value);
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256 }
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257 }
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258 }
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