src/server/daemon/vfs.c

Wed, 28 Dec 2016 12:23:51 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 28 Dec 2016 12:23:51 +0100
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parent 105
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child 165
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permissions
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using host header to select virtual server

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2013 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #define _POSIX_PTHREAD_SEMANTIS
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30
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31 #include <stdio.h>
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32 #include <stdlib.h>
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33 #include <unistd.h>
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34 #include <sys/types.h>
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35
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36 #include <ucx/map.h>
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37
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38 #include "../util/pool.h"
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39 #include "acl.h"
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40 #include "vfs.h"
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41
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42 static UcxMap *vfs_map;
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43
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44 static VFS_IO sys_file_io = {
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45 sys_file_read,
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46 sys_file_write,
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47 sys_file_seek,
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48 sys_file_close
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49 };
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50
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51 static VFS_DIRIO sys_dir_io = {
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52 sys_dir_read,
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53 sys_dir_close
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54 };
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55
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56 int vfs_init() {
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57 vfs_map = ucx_map_new(16);
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58 if(!vfs_map) {
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59 return -1;
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60 }
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61 return 0;
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62 }
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63
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64 void vfs_add(char *name, VFS *vfs) {
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65 WS_ASSERT(name);
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66
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67 if(!vfs_map) {
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68 vfs_init();
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69 }
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70 ucx_map_cstr_put(vfs_map, name, vfs);
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71 }
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72
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73 VFSContext* vfs_request_context(Session *sn, Request *rq) {
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74 WS_ASSERT(sn);
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75 WS_ASSERT(rq);
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76
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77 VFSContext *ctx = pool_malloc(sn->pool, sizeof(VFSContext));
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78 ctx->sn = sn;
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79 ctx->rq = rq;
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80 ctx->vfs = rq->vfs;
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81 ctx->user = acllist_getuser(sn, rq, rq->acllist);
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82 ctx->acllist = rq->acllist;
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83 ctx->aclreqaccess = rq->aclreqaccess;
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84 ctx->pool = sn->pool;
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85 ctx->vfs_errno = 0;
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86 return ctx;
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87 }
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88
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89 SYS_FILE vfs_open(VFSContext *ctx, char *path, int oflags) {
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90 WS_ASSERT(path);
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91
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92 Session *sn;
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93 Request *rq;
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94 pool_handle_t *pool;
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95 uint32_t access_mask;
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96
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97 if(ctx) {
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98 access_mask = ctx->aclreqaccess;
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99 access_mask |= acl_oflag2mask(oflags);
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100 if(!ctx->pool) {
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101 // TODO: log warning
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102 // broken VFSContext
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103 }
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104 if(ctx->vfs) {
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105 // ctx->aclreqaccess should be the complete access mask
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106 uint32_t m = ctx->aclreqaccess; // save original access mask
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107 ctx->aclreqaccess = access_mask; // set mask for vfs->open call
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108 SYS_FILE file = ctx->vfs->open(ctx, path, oflags);
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109 ctx->aclreqaccess = m; // restore original access mask
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110 return file;
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111 } else {
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112 pool = ctx->pool;
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113 }
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114 } else {
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115 sn = NULL;
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116 rq = NULL;
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117 pool = NULL;
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118 access_mask = acl_oflag2mask(oflags);
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119 }
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120
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121 // check ACLs
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122 SysACL sysacl;
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123 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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124 return NULL;
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125 }
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126
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127 if(sysacl.acl) {
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128 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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129 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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130 return NULL;
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131 }
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132 }
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133
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134 // open file
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135 mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
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136 int fd = open(path, oflags, mode);
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137 if(fd == -1) {
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138 if(ctx) {
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139 ctx->vfs_errno = errno;
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140 sys_set_error_status(ctx);
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141 }
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142 return NULL;
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143 }
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144
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145 // if a file system acl is active, we set the owner for newly created files
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146 if(((oflags & O_CREAT) == O_CREAT) && sysacl.user_uid != -1) {
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147 if(fchown(fd, sysacl.user_uid, sysacl.user_gid)) {
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148 perror("vfs_open: fchown");
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149 close(fd);
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150 return NULL;
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151 }
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152 }
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153
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154
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155 VFSFile *file = pool ?
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156 pool_malloc(pool, sizeof(VFSFile)) : malloc(sizeof(VFSFile));
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157 if(!file) {
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158 close(fd);
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159 return NULL;
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160 }
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161 file->ctx = ctx;
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162 file->data = NULL;
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163 file->fd = fd;
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164 file->io = &sys_file_io;
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165 return file;
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166 }
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167
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168 SYS_FILE vfs_openRO(VFSContext *ctx, char *path) {
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169 return vfs_open(ctx, path, O_RDONLY);
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170 }
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171
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172 SYS_FILE vfs_openWO(VFSContext *ctx, char *path) {
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173 return vfs_open(ctx, path, O_WRONLY | O_CREAT);
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174 }
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175
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176 SYS_FILE vfs_openRW(VFSContext *ctx, char *path) {
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177 return vfs_open(ctx, path, O_RDONLY | O_WRONLY | O_CREAT);
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178 }
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179
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180 int vfs_stat(VFSContext *ctx, char *path, struct stat *buf) {
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181 Session *sn;
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182 Request *rq;
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183 uint32_t access_mask;
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184
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185 if(ctx) {
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186 access_mask = ctx->aclreqaccess;
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187 access_mask |= ACL_READ_ATTRIBUTES;
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188 if(!ctx->pool) {
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189 // TODO: log warning
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190 // broken VFSContext
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191 }
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192 if(ctx->vfs) {
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193 // ctx->aclreqaccess should be the complete access mask
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194 uint32_t m = ctx->aclreqaccess; // save original access mask
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195 ctx->aclreqaccess = access_mask; // set mask for vfs->fstat call
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196 int ret = ctx->vfs->stat(ctx, path, buf);
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197 ctx->aclreqaccess = m; // restore original access mask
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198 return ret;
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199 }
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200 } else {
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201 sn = NULL;
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202 rq = NULL;
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203 access_mask = ACL_READ_ATTRIBUTES;
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204 }
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205
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206 // check ACLs
63
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207 SysACL sysacl;
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208 if(sys_acl_check(ctx, access_mask, &sysacl)) {
57
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209 return -1;
54
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210 }
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211
63
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212 if(sysacl.acl) {
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213 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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214 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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215 return -1;
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216 }
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217 }
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218
54
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219 // stat
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220 if(stat(path, buf)) {
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221 if(ctx) {
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222 ctx->vfs_errno = errno;
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223 sys_set_error_status(ctx);
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224 }
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225 return -1;
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226 }
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227
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228 return 0;
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229 }
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230
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231 int vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf) {
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232 if(ctx) {
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233 if(!ctx->pool) {
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234 // TODO: log warning
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235 // broken VFSContext
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236 }
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237 if(ctx->vfs) {
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238 return ctx->vfs->fstat(ctx, fd, buf);
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239 }
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240 }
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241
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242 // stat
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243 if(fstat(fd->fd, buf)) {
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244 if(ctx) {
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245 ctx->vfs_errno = errno;
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246 }
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247 return -1;
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248 }
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249
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250 return 0;
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251 }
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252
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253 void vfs_close(SYS_FILE fd) {
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254 fd->io->close(fd);
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diff changeset
255 if(fd->ctx) {
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256 pool_free(fd->ctx->pool, fd);
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257 } else {
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diff changeset
258 free(fd);
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259 }
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260 }
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261
55
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diff changeset
262 VFS_DIR vfs_opendir(VFSContext *ctx, char *path) {
87
bdec069d2239 fixed pathcheck behavior
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diff changeset
263 WS_ASSERT(path);
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diff changeset
264
55
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diff changeset
265 Session *sn;
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diff changeset
266 Request *rq;
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diff changeset
267 pool_handle_t *pool;
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diff changeset
268 uint32_t access_mask;
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diff changeset
269
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diff changeset
270 if(ctx) {
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diff changeset
271 access_mask = ctx->aclreqaccess;
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272 access_mask |= ACL_LIST;
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273 if(!ctx->pool) {
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diff changeset
274 // TODO: log warning
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diff changeset
275 // broken VFSContext
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diff changeset
276 }
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diff changeset
277 if(ctx->vfs) {
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diff changeset
278 // ctx->aclreqaccess should be the complete access mask
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279 uint32_t m = ctx->aclreqaccess; // save original access mask
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diff changeset
280 ctx->aclreqaccess = access_mask; // set mask for vfs->opendir call
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diff changeset
281 VFS_DIR dir = ctx->vfs->opendir(ctx, path);
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diff changeset
282 ctx->aclreqaccess = m; // restore original access mask
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283 return dir;
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diff changeset
284 } else {
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diff changeset
285 pool = ctx->pool;
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diff changeset
286 }
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diff changeset
287 } else {
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diff changeset
288 sn = NULL;
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289 rq = NULL;
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290 pool = NULL;
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diff changeset
291 access_mask = ACL_LIST;
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292 }
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diff changeset
293
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diff changeset
294 // check ACLs
63
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295 SysACL sysacl;
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diff changeset
296 if(sys_acl_check(ctx, access_mask, &sysacl)) {
55
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diff changeset
297 return NULL;
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diff changeset
298 }
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diff changeset
299
63
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diff changeset
300 if(sysacl.acl) {
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diff changeset
301 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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diff changeset
302 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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diff changeset
303 return NULL;
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diff changeset
304 }
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305 }
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306
72
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307 // open directory
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308 #ifdef BSD
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309 DIR *sys_dir = opendir(path);
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310 int dir_fd = sys_dir ? dirfd(sys_dir) : 0;
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311 #else
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312 int dir_fd = open(path, O_RDONLY);
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313 if(dir_fd == -1) {
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314 if(ctx) {
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315 ctx->vfs_errno = errno;
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316 sys_set_error_status(ctx);
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317 }
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318 return NULL;
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319 }
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320 DIR *sys_dir = fdopendir(dir_fd);
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321 #endif
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322 if(!sys_dir) {
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323 if(ctx) {
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324 ctx->vfs_errno = errno;
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325 sys_set_error_status(ctx);
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326 }
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327 return NULL;
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328 }
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329
105
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330 SysVFSDir *dir_data = pool ?
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331 pool_malloc(pool, sizeof(SysVFSDir)) : malloc(sizeof(SysVFSDir));
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332 if(!dir_data) {
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333 closedir(sys_dir);
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334 return NULL;
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335 }
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336 long maxfilelen = fpathconf(dir_fd, _PC_NAME_MAX);
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337 size_t entry_len = offsetof(struct dirent, d_name) + maxfilelen + 1;
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338 dir_data->cur = pool ?
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339 pool_malloc(pool, entry_len) : malloc(entry_len);
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340 if(!dir_data->cur) {
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341 closedir(sys_dir);
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342 return NULL;
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343 }
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344 dir_data->dir = sys_dir;
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345
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346 VFSDir *dir = pool ?
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347 pool_malloc(pool, sizeof(VFSDir)) : malloc(sizeof(VFSDir));
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348 if(!dir) {
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349 closedir(sys_dir);
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350 return NULL;
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351 }
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diff changeset
352 dir->ctx = ctx;
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353 dir->data = dir_data;
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354 dir->fd = dir_fd;
55
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355 dir->io = &sys_dir_io;
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356 return dir;
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357 }
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358
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diff changeset
359 int vfs_readdir(VFS_DIR dir, VFS_ENTRY *entry) {
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360 return dir->io->readdir(dir, entry, 0);
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361 }
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362
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diff changeset
363 int vfs_readdir_stat(VFS_DIR dir, VFS_ENTRY *entry) {
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364 return dir->io->readdir(dir, entry, 1);
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diff changeset
365 }
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366
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367 void vfs_closedir(VFS_DIR dir) {
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368 dir->io->close(dir);
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369 if(dir->ctx) {
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370 pool_free(dir->ctx->pool, dir);
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371 } else {
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diff changeset
372 free(dir);
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373 }
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374 }
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diff changeset
375
56
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diff changeset
376 int vfs_mkdir(VFSContext *ctx, char *path) {
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377 if(ctx && ctx->vfs) {
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378 return vfs_path_op(ctx, path, ctx->vfs->mkdir, ACL_ADD_FILE);
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379 } else {
63
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380 return sys_path_op(ctx, path, sys_mkdir, ACL_ADD_FILE);
56
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381 }
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diff changeset
382 }
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diff changeset
383
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diff changeset
384 int vfs_unlink(VFSContext *ctx, char *path) {
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diff changeset
385 if(ctx && ctx->vfs) {
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diff changeset
386 return vfs_path_op(ctx, path, ctx->vfs->unlink, ACL_DELETE);
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diff changeset
387 } else {
63
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diff changeset
388 return sys_path_op(ctx, path, sys_unlink, ACL_DELETE);
56
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diff changeset
389 }
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diff changeset
390 }
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diff changeset
391
54
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parents:
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392
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parents:
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393 // private
56
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diff changeset
394 int vfs_path_op(VFSContext *ctx, char *path, vfs_op_f op, uint32_t access) {
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diff changeset
395 Session *sn;
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diff changeset
396 Request *rq;
63
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diff changeset
397
66442f81f823 supports file system ACLs on Solaris
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diff changeset
398 uint32_t access_mask = ctx->aclreqaccess;
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diff changeset
399 access_mask |= access;
66442f81f823 supports file system ACLs on Solaris
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diff changeset
400 if(!ctx->pool) {
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
401 // TODO: log warning
66442f81f823 supports file system ACLs on Solaris
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diff changeset
402 // broken VFSContext
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diff changeset
403 return -1;
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
404 }
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
405
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
406 // ctx->aclreqaccess should be the complete access mask
66442f81f823 supports file system ACLs on Solaris
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diff changeset
407 uint32_t m = ctx->aclreqaccess; // save original access mask
66442f81f823 supports file system ACLs on Solaris
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diff changeset
408 ctx->aclreqaccess = access_mask; // set mask for vfs function call
66442f81f823 supports file system ACLs on Solaris
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diff changeset
409 int ret = op(ctx, path);
66442f81f823 supports file system ACLs on Solaris
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diff changeset
410 ctx->aclreqaccess = m; // restore original access mask
66442f81f823 supports file system ACLs on Solaris
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diff changeset
411 return ret;
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
412 }
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
413
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
414 int sys_path_op(VFSContext *ctx, char *path, sys_op_f op, uint32_t access) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
415 if(ctx) {
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
416 access |= ctx->aclreqaccess;
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
417 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
418
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diff changeset
419 // check ACLs
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
420 SysACL sysacl;
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diff changeset
421 if(sys_acl_check(ctx, access, &sysacl)) {
57
b3a89736b23e some fixes
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parents: 56
diff changeset
422 return -1;
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
423 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
424
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
425 if(sysacl.acl) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
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diff changeset
426 if(!fs_acl_check(&sysacl, ctx->user, path, access)) {
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
427 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
66442f81f823 supports file system ACLs on Solaris
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diff changeset
428 return -1;
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
429 }
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
430 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
431
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
432 // do path operation
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
433 if(op(ctx, path, &sysacl)) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
434 // error
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
435 if(ctx) {
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
436 ctx->vfs_errno = errno;
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
437 sys_set_error_status(ctx);
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
438 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
439 return -1;
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
440 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
441
c6cf20b09043 added vfs_mkdir and vfs_unlink
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diff changeset
442 return 0;
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
443 }
54
3a1d5a52adfc new vfs api
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parents:
diff changeset
444
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
445 int sys_acl_check(VFSContext *ctx, uint32_t access_mask, SysACL *sysacl) {
67
50505dc3f8a6 dynamic thread pool
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diff changeset
446 if(sysacl) {
50505dc3f8a6 dynamic thread pool
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diff changeset
447 sysacl->acl = NULL;
50505dc3f8a6 dynamic thread pool
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diff changeset
448 }
54
3a1d5a52adfc new vfs api
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parents:
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449 if(!ctx) {
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parents:
diff changeset
450 return 0;
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
451 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
452
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
453 ACLListHandle *acllist = ctx->acllist;
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
454 if(acllist) {
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
455 ACLList *acl = acl_evallist(
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
456 acllist,
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
457 ctx->user,
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
458 access_mask,
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
459 &sysacl->acl);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
460
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
461 if(acl) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
462 acl_set_error_status(ctx->sn, ctx->rq, acl, ctx->user);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
463 return 1;
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
464 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
465 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
466
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
467 return 0;
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
468 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
469
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
470 void sys_set_error_status(VFSContext *ctx) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
471 if(ctx->sn && ctx->rq) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
472 int status = util_errno2status(ctx->vfs_errno);
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
473 protocol_status(ctx->sn, ctx->rq, status, NULL);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
474 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
475 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
476
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
477 ssize_t sys_file_read(SYS_FILE fd, void *buf, size_t nbyte) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
478 return read(fd->fd, buf, nbyte);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
479 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
480
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
481 ssize_t sys_file_write(SYS_FILE fd, const void *buf, size_t nbyte) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
482 return write(fd->fd, buf, nbyte);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
483 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
484
66
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
485 off_t sys_file_seek(SYS_FILE fd, off_t offset, int whence) {
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
486 return lseek(fd->fd, offset, whence);
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
487 }
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
488
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
489 void sys_file_close(SYS_FILE fd) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
490 close(fd->fd);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
491 }
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
492
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
493 int sys_dir_read(VFS_DIR dir, VFS_ENTRY *entry, int getstat) {
105
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
494 SysVFSDir *dirdata = dir->data;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
495 struct dirent *result = NULL;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
496 int s = readdir_r(dirdata->dir, dirdata->cur, &result);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
497 if(!s && result) {
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
498 char *name = result->d_name;
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
499 if(!strcmp(name, ".") || !strcmp(name, "..")) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
500 return sys_dir_read(dir, entry, getstat);
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
501 } else {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
502 entry->name = name;
69
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 67
diff changeset
503 #ifndef OSX
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 67
diff changeset
504 /* TODO:
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 67
diff changeset
505 * implement alternative for fstat for OS X and other crappy
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 67
diff changeset
506 * Unices
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 67
diff changeset
507 */
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
508 if(getstat) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
509 // TODO: check ACLs again for new path
105
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
510 if(fstatat(dir->fd, result->d_name, &entry->stat, 0)) {
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
511 entry->stat_errno = errno;
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
512 }
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
513 entry->stat_extra = NULL;
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
514 }
69
4a10bc0ee80d compiles on os x
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 67
diff changeset
515 #endif
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
516 return 1;
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
517 }
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
518 } else {
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
519 return 0;
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
520 }
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
521 }
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
522
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
523 void sys_dir_close(VFS_DIR dir) {
105
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
524 SysVFSDir *dirdata = dir->data;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
525 closedir(dirdata->dir);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
526
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
527 pool_handle_t *pool = dir->ctx->pool;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
528 if(pool) {
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
529 pool_free(pool, dirdata->cur);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
530 pool_free(pool, dirdata);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
531 pool_free(pool, dir);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
532 } else {
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
533 free(dirdata->cur);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
534 free(dirdata);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
535 free(dir);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
536 }
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
537 }
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
538
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
539 int sys_mkdir(VFSContext *ctx, char *path, SysACL *sysacl) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
540 mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
541 int ret = mkdir(path, mode);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
542 if(ret == 0) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
543 if(sysacl->user_uid != -1) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
544 if(chown(path, sysacl->user_uid, sysacl->user_gid)) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
545 // TODO: error
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
546 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
547 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
548 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
549 return ret;
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
550 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
551
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
552 int sys_unlink(VFSContext *ctx, char *path, SysACL *sysacl) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
553 return unlink(path);
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
554 }
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
555
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
556 /* public file api */
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
557
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
558 NSAPI_PUBLIC int system_fread(SYS_FILE fd, void *buf, int nbyte) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
559 return fd->io->read(fd, buf, nbyte);
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
560 }
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
561
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
562 NSAPI_PUBLIC int system_fwrite(SYS_FILE fd, const void *buf, int nbyte) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
563 return fd->io->write(fd, buf, nbyte);
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
564 }
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
565
66
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
566 NSAPI_PUBLIC off_t system_lseek(SYS_FILE fd, off_t offset, int whence) {
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
567 return fd->io->seek(fd, offset, whence);
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
568 }
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
569
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
570 NSAPI_PUBLIC int system_fclose(SYS_FILE fd) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
571 vfs_close(fd);
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
572 return 0;
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
573 }

mercurial