1 | /********************************************************************** |
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2 | * |
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3 | * rtems shttpd management |
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4 | * |
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5 | * FILE NAME : rtems_shttpd.c |
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6 | * |
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7 | * AUTHOR : Steven Johnson |
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8 | * |
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9 | * DESCRIPTION : Defines the interface functions to the shttp daemon |
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10 | * |
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11 | * REVISION : $Id$ |
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12 | * |
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13 | * COMMENTS : |
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14 | * |
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15 | **********************************************************************/ |
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16 | |
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17 | /********************************************************************** |
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18 | * INCLUDED MODULES |
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19 | **********************************************************************/ |
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20 | #include <rtems.h> |
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21 | #include "defs.h" |
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22 | |
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23 | #define MAX_WEB_BASE_PATH_LENGTH 256 |
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24 | #define MIN_SHTTPD_STACK (8*1024) |
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25 | |
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26 | typedef struct RTEMS_HTTPD_ARGS { |
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27 | rtems_shttpd_init init_callback; |
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28 | rtems_shttpd_addpages addpages_callback; |
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29 | unsigned int port; |
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30 | char webroot[MAX_WEB_BASE_PATH_LENGTH]; |
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31 | } RTEMS_HTTPD_ARGS; |
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32 | |
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33 | static int rtems_webserver_running = FALSE; //not running. |
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34 | |
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35 | static rtems_task rtems_httpd_daemon(rtems_task_argument args) |
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36 | { |
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37 | RTEMS_HTTPD_ARGS *httpd_args = (RTEMS_HTTPD_ARGS*)args; |
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38 | |
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39 | struct shttpd_ctx *ctx; |
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40 | |
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41 | if (httpd_args != NULL) |
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42 | if (httpd_args->init_callback != NULL) |
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43 | httpd_args->init_callback(); |
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44 | |
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45 | /************************************** |
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46 | * Initialize the web server |
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47 | */ |
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48 | /* |
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49 | * Initialize SHTTPD context. |
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50 | * Set WWW root to current WEB_ROOT_PATH. |
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51 | */ |
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52 | ctx = shttpd_init(NULL, "document_root", httpd_args->webroot, NULL); |
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53 | |
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54 | if (httpd_args != NULL) |
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55 | if (httpd_args->addpages_callback != NULL) |
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56 | httpd_args->addpages_callback(ctx); |
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57 | |
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58 | /* Finished with args, so free them */ |
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59 | if (httpd_args != NULL) |
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60 | free(httpd_args); |
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61 | |
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62 | /* Open listening socket */ |
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63 | shttpd_listen(ctx, httpd_args->port); |
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64 | |
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65 | rtems_webserver_running = TRUE; |
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66 | |
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67 | /* Serve connections infinitely until someone kills us */ |
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68 | while (rtems_webserver_running) |
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69 | shttpd_poll(ctx, 1000); |
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70 | |
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71 | /* Unreached, because we will be killed by a signal */ |
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72 | shttpd_fini(ctx); |
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73 | |
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74 | rtems_task_delete( RTEMS_SELF ); |
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75 | } |
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76 | |
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77 | rtems_status_code rtems_initialize_webserver(rtems_task_priority initial_priority, |
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78 | size_t stack_size, |
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79 | rtems_mode initial_modes, |
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80 | rtems_attribute attribute_set, |
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81 | rtems_shttpd_init init_callback, |
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82 | rtems_shttpd_addpages addpages_callback, |
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83 | char *webroot, |
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84 | unsigned int port |
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85 | ) |
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86 | { |
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87 | rtems_status_code sc; |
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88 | rtems_id tid; |
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89 | RTEMS_HTTPD_ARGS *args; |
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90 | |
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91 | if (stack_size < MIN_SHTTPD_STACK) |
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92 | stack_size = MIN_SHTTPD_STACK; |
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93 | |
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94 | args = malloc(sizeof(RTEMS_HTTPD_ARGS)); |
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95 | |
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96 | if (args != NULL) |
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97 | { |
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98 | args->init_callback = init_callback; |
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99 | args->addpages_callback = addpages_callback; |
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100 | args->port = port; |
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101 | strncpy(args->webroot,webroot,MAX_WEB_BASE_PATH_LENGTH); |
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102 | |
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103 | sc = rtems_task_create(rtems_build_name('H', 'T', 'P', 'D'), |
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104 | initial_priority, |
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105 | stack_size, |
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106 | initial_modes, |
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107 | attribute_set, |
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108 | &tid); |
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109 | |
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110 | if (sc == RTEMS_SUCCESSFUL) |
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111 | { |
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112 | sc = rtems_task_start(tid, rtems_httpd_daemon, (rtems_task_argument)args); |
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113 | } |
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114 | } |
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115 | else |
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116 | { |
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117 | sc = RTEMS_NO_MEMORY; |
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118 | } |
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119 | |
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120 | return sc; |
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121 | } |
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122 | |
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123 | void rtems_terminate_webserver(void) |
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124 | { |
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125 | rtems_webserver_running = FALSE; // not running, so terminate |
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126 | } |
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127 | |
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128 | int rtems_webserver_ok(void) |
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129 | { |
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130 | return rtems_webserver_running; |
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131 | } |
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132 | |
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133 | void |
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134 | set_close_on_exec(int fd) |
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135 | { |
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136 | // RTEMS Does not have a functional "execve" |
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137 | // so technically this call does not do anything, |
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138 | // but it doesnt hurt either. |
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139 | (void) fcntl(fd, F_SETFD, FD_CLOEXEC); |
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140 | } |
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141 | #ifndef __rtems__ |
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142 | int |
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143 | my_stat(const char *path, struct stat *stp) |
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144 | { |
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145 | return (stat(path, stp)); |
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146 | } |
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147 | |
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148 | int |
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149 | my_open(const char *path, int flags, int mode) |
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150 | { |
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151 | return (open(path, flags, mode)); |
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152 | } |
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153 | |
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154 | int |
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155 | my_remove(const char *path) |
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156 | { |
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157 | return (remove(path)); |
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158 | } |
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159 | |
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160 | int |
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161 | my_rename(const char *path1, const char *path2) |
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162 | { |
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163 | return (rename(path1, path2)); |
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164 | } |
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165 | |
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166 | int |
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167 | my_mkdir(const char *path, int mode) |
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168 | { |
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169 | return (mkdir(path, mode)); |
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170 | } |
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171 | |
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172 | char * |
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173 | my_getcwd(char *buffer, int maxlen) |
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174 | { |
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175 | return (getcwd(buffer, maxlen)); |
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176 | } |
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177 | #endif |
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178 | int |
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179 | set_non_blocking_mode(int fd) |
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180 | { |
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181 | int ret = -1; |
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182 | int flags; |
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183 | |
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184 | if ((flags = fcntl(fd, F_GETFL, 0)) == -1) { |
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185 | DBG(("nonblock: fcntl(F_GETFL): %d", ERRNO)); |
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186 | } else if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0) { |
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187 | DBG(("nonblock: fcntl(F_SETFL): %d", ERRNO)); |
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188 | } else { |
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189 | ret = 0; /* Success */ |
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190 | } |
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191 | |
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192 | return (ret); |
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193 | } |
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194 | |
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195 | #if !defined(NO_CGI) |
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196 | int |
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197 | spawn_process(struct conn *c, const char *prog, char *envblk, char **envp) |
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198 | { |
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199 | return (-1); // RTEMS does not have subprocess support as standard. |
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200 | } |
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201 | #endif |
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