src/server/daemon/vfs.c

Sat, 13 Jan 2018 18:48:19 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 13 Jan 2018 18:48:19 +0100
branch
aio
changeset 192
6a145e13d933
parent 190
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child 193
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permissions
-rw-r--r--

replaces eventfd with pipe and closes aio branch

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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 #include <aio.h>
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36
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37 #include <ucx/map.h>
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38
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39 #include "../util/pool.h"
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40 #include "acl.h"
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41 #include "vfs.h"
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42 #include "threadpools.h"
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43 #include "event.h"
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44
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45 #define VFS_MALLOC(pool, size) pool ? pool_malloc(pool, size) : malloc(size)
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46 #define VFS_FREE(pool, ptr) pool ? pool_free(pool, ptr) : free(ptr)
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47
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48 static UcxMap *vfs_map;
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49
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50 static VFS sys_vfs = {
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51 sys_vfs_open,
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52 sys_vfs_stat,
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53 sys_vfs_fstat,
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54 sys_vfs_opendir,
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55 sys_vfs_mkdir,
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56 sys_vfs_unlink,
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57 VFS_CHECKS_ACL
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58 };
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59
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60 static VFS_IO sys_file_io = {
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61 sys_file_read,
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62 sys_file_write,
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63 sys_file_pread,
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64 sys_file_pwrite,
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65 sys_file_seek,
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66 sys_file_close,
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67 //sys_file_aioread,
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68 //sys_file_aiowrite,
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69 NULL,
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70 NULL
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71 };
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72
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73 static VFS_DIRIO sys_dir_io = {
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74 sys_dir_read,
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75 sys_dir_close
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76 };
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77
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78 int vfs_init() {
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79 vfs_map = ucx_map_new(16);
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80 if(!vfs_map) {
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81 return -1;
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82 }
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83 return 0;
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84 }
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85
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86 void vfs_add(char *name, VFS *vfs) {
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87 WS_ASSERT(name);
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88
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89 if(!vfs_map) {
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90 vfs_init();
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91 }
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92 ucx_map_cstr_put(vfs_map, name, vfs);
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93 }
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94
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95 VFSContext* vfs_request_context(Session *sn, Request *rq) {
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96 WS_ASSERT(sn);
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97 WS_ASSERT(rq);
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98
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99 VFSContext *ctx = pool_malloc(sn->pool, sizeof(VFSContext));
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100 ctx->sn = sn;
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101 ctx->rq = rq;
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102 ctx->vfs = rq->vfs ? rq->vfs : &sys_vfs;
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103 ctx->user = acllist_getuser(sn, rq, rq->acllist);
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104 ctx->acllist = rq->acllist;
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105 ctx->aclreqaccess = rq->aclreqaccess;
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106 ctx->pool = sn->pool;
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107 ctx->vfs_errno = 0;
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108 return ctx;
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109 }
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110
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111 SYS_FILE vfs_open(VFSContext *ctx, char *path, int oflags) {
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112 WS_ASSERT(ctx);
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113 WS_ASSERT(path);
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114
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115 uint32_t access_mask = ctx->aclreqaccess | acl_oflag2mask(oflags);
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116
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117 // ctx->aclreqaccess should be the complete access mask
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118 uint32_t m = ctx->aclreqaccess; // save original access mask
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119 ctx->aclreqaccess = access_mask; // set mask for vfs->open call
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120 if((ctx->vfs->flags & VFS_CHECKS_ACL) != VFS_CHECKS_ACL) {
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121 // VFS does not evaluates the ACL itself, so we have to do it here
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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 SYS_FILE file = ctx->vfs->open(ctx, path, oflags);
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128 ctx->aclreqaccess = m; // restore original access mask
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129 return file;
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130 }
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131
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132 SYS_FILE vfs_openRO(VFSContext *ctx, char *path) {
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133 return vfs_open(ctx, path, O_RDONLY);
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134 }
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135
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136 SYS_FILE vfs_openWO(VFSContext *ctx, char *path) {
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137 return vfs_open(ctx, path, O_WRONLY | O_CREAT);
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138 }
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139
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140 SYS_FILE vfs_openRW(VFSContext *ctx, char *path) {
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141 return vfs_open(ctx, path, O_RDONLY | O_WRONLY | O_CREAT);
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142 }
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143
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144 int vfs_stat(VFSContext *ctx, char *path, struct stat *buf) {
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145 WS_ASSERT(ctx);
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146 WS_ASSERT(path);
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147
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148 uint32_t access_mask = ctx->aclreqaccess | ACL_READ_ATTRIBUTES;
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149
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150 // ctx->aclreqaccess should be the complete access mask
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151 uint32_t m = ctx->aclreqaccess; // save original access mask
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152 ctx->aclreqaccess = access_mask; // set mask for vfs->open call
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153 if((ctx->vfs->flags & VFS_CHECKS_ACL) != VFS_CHECKS_ACL) {
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154 // VFS does not evaluates the ACL itself, so we have to do it here
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155 SysACL sysacl;
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156 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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157 return -1;
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158 }
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159 }
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160 int ret = ctx->vfs->stat(ctx, path, buf);
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161 ctx->aclreqaccess = m; // restore original access mask
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162 return ret;
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163 }
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164
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165 int vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf) {
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166 WS_ASSERT(ctx);
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167 WS_ASSERT(fd);
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168 WS_ASSERT(buf);
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169
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170 return ctx->vfs->fstat(ctx, fd, buf);
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171 }
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172
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173 void vfs_close(SYS_FILE fd) {
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174 WS_ASSERT(fd);
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175
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176 fd->io->close(fd);
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177 if(fd->ctx) {
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178 pool_free(fd->ctx->pool, fd);
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179 } else {
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180 free(fd);
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181 }
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182 }
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183
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184 VFS_DIR vfs_opendir(VFSContext *ctx, char *path) {
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185 WS_ASSERT(ctx);
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186 WS_ASSERT(path);
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187
165
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188 uint32_t access_mask = ctx->aclreqaccess | ACL_LIST;
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189
165
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190 // ctx->aclreqaccess should be the complete access mask
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191 uint32_t m = ctx->aclreqaccess; // save original access mask
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192 ctx->aclreqaccess = access_mask; // set mask for vfs->open call
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193 if((ctx->vfs->flags & VFS_CHECKS_ACL) != VFS_CHECKS_ACL) {
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194 // VFS does not evaluates the ACL itself, so we have to do it here
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195 SysACL sysacl;
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196 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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197 return NULL;
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198 }
165
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199 }
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200 VFS_DIR dir = ctx->vfs->opendir(ctx, path);
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201 ctx->aclreqaccess = m; // restore original access mask
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202 return dir;
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203 }
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204
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205 int vfs_readdir(VFS_DIR dir, VFS_ENTRY *entry) {
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206 WS_ASSERT(dir);
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207 WS_ASSERT(entry);
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208
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209 return dir->io->readdir(dir, entry, 0);
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210 }
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211
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212 int vfs_readdir_stat(VFS_DIR dir, VFS_ENTRY *entry) {
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213 WS_ASSERT(dir);
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214 WS_ASSERT(entry);
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215
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216 return dir->io->readdir(dir, entry, 1);
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217 }
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218
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219 void vfs_closedir(VFS_DIR dir) {
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220 WS_ASSERT(dir);
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221
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222 dir->io->close(dir);
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223 if(dir->ctx) {
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224 VFS_FREE(dir->ctx->pool, dir);
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225 } else {
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226 free(dir);
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227 }
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228 }
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229
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230 int vfs_mkdir(VFSContext *ctx, char *path) {
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231 WS_ASSERT(ctx);
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232 WS_ASSERT(path);
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233
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234 return vfs_path_op(ctx, path, ctx->vfs->mkdir, ACL_ADD_FILE);
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235 }
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236
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237 int vfs_unlink(VFSContext *ctx, char *path) {
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238 WS_ASSERT(ctx);
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239 WS_ASSERT(path);
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240
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241 return vfs_path_op(ctx, path, ctx->vfs->unlink, ACL_DELETE);
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242 }
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243
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244
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245 // private
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246 int vfs_path_op(VFSContext *ctx, char *path, vfs_op_f op, uint32_t access) {
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247 uint32_t access_mask = ctx->aclreqaccess;
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248 access_mask |= access;
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249
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250 // ctx->aclreqaccess should be the complete access mask
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251 uint32_t m = ctx->aclreqaccess; // save original access mask
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252 ctx->aclreqaccess = access_mask; // set mask for vfs function call
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253 if((ctx->vfs->flags & VFS_CHECKS_ACL) != VFS_CHECKS_ACL) {
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254 // VFS does not evaluates the ACL itself, so we have to do it here
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255 SysACL sysacl;
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256 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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257 return -1;
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258 }
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259 }
165
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260 int ret = op(ctx, path);
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261 ctx->aclreqaccess = m; // restore original access mask
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262 return ret;
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263 }
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264
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265 /* system vfs implementation */
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266
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267 SYS_FILE sys_vfs_open(VFSContext *ctx, char *path, int oflags) {
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268 uint32_t access_mask = ctx->aclreqaccess;
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269 pool_handle_t *pool = ctx->pool;
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270
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271 // check ACLs
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272 SysACL sysacl;
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273 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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274 return NULL;
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275 }
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276
63
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277 if(sysacl.acl) {
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278 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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279 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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280 return NULL;
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281 }
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282 }
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283
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284 // open file
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285 mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
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286 int fd = open(path, oflags, mode);
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287 if(fd == -1) {
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288 if(ctx) {
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289 ctx->vfs_errno = errno;
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290 sys_set_error_status(ctx);
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291 }
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292 return NULL;
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293 }
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294
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295 // if a file system acl is active, we set the owner for newly created files
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296 if(((oflags & O_CREAT) == O_CREAT) && sysacl.user_uid != -1) {
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297 if(fchown(fd, sysacl.user_uid, sysacl.user_gid)) {
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298 perror("vfs_open: fchown");
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299 close(fd);
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300 return NULL;
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301 }
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302 }
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303
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304 VFSFile *file = VFS_MALLOC(pool, sizeof(VFSFile));
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305 if(!file) {
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306 close(fd);
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307 return NULL;
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308 }
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309 file->ctx = ctx;
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310 file->data = NULL;
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311 file->fd = fd;
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312 file->io = &sys_file_io;
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313 return file;
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314 }
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315
165
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316 int sys_vfs_stat(VFSContext *ctx, char *path, struct stat *buf) {
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317 uint32_t access_mask = ctx->aclreqaccess;
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318
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319 // check ACLs
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320 SysACL sysacl;
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321 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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322 return -1;
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323 }
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324
63
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325 if(sysacl.acl) {
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326 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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327 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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328 return -1;
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329 }
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330 }
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331
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332 // stat
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333 if(stat(path, buf)) {
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334 if(ctx) {
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335 ctx->vfs_errno = errno;
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336 sys_set_error_status(ctx);
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337 }
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338 return -1;
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339 }
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340
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341 return 0;
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342 }
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343
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344 int sys_vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf) {
54
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345 // stat
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346 if(fstat(fd->fd, buf)) {
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347 if(ctx) {
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348 ctx->vfs_errno = errno;
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349 }
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350 return -1;
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351 }
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352
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353 return 0;
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354 }
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355
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diff changeset
356 VFS_DIR sys_vfs_opendir(VFSContext *ctx, char *path) {
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357 uint32_t access_mask = ctx->aclreqaccess;
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358 pool_handle_t *pool = ctx->pool;
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359
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360 // check ACLs
63
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361 SysACL sysacl;
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362 if(sys_acl_check(ctx, access_mask, &sysacl)) {
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363 return NULL;
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364 }
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diff changeset
365
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
366 if(sysacl.acl) {
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diff changeset
367 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
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368 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
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369 return NULL;
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370 }
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diff changeset
371 }
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diff changeset
372
72
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373 // open directory
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374 #ifdef BSD
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375 DIR *sys_dir = opendir(path);
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diff changeset
376 int dir_fd = sys_dir ? dirfd(sys_dir) : 0;
72
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diff changeset
377 #else
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378 int dir_fd = open(path, O_RDONLY);
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diff changeset
379 if(dir_fd == -1) {
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380 if(ctx) {
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diff changeset
381 ctx->vfs_errno = errno;
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382 sys_set_error_status(ctx);
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383 }
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diff changeset
384 return NULL;
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diff changeset
385 }
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diff changeset
386 DIR *sys_dir = fdopendir(dir_fd);
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diff changeset
387 #endif
55
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diff changeset
388 if(!sys_dir) {
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diff changeset
389 if(ctx) {
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diff changeset
390 ctx->vfs_errno = errno;
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391 sys_set_error_status(ctx);
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diff changeset
392 }
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diff changeset
393 return NULL;
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parents: 54
diff changeset
394 }
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parents: 54
diff changeset
395
165
6942a8c3e737 refactors vfs code
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diff changeset
396 SysVFSDir *dir_data = VFS_MALLOC(pool, sizeof(SysVFSDir));
105
63d9051fe35c using readdir_r instead of readdir
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diff changeset
397 if(!dir_data) {
63d9051fe35c using readdir_r instead of readdir
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diff changeset
398 closedir(sys_dir);
63d9051fe35c using readdir_r instead of readdir
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diff changeset
399 return NULL;
63d9051fe35c using readdir_r instead of readdir
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parents: 97
diff changeset
400 }
63d9051fe35c using readdir_r instead of readdir
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parents: 97
diff changeset
401 long maxfilelen = fpathconf(dir_fd, _PC_NAME_MAX);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
402 size_t entry_len = offsetof(struct dirent, d_name) + maxfilelen + 1;
165
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parents: 105
diff changeset
403 dir_data->cur = VFS_MALLOC(pool, entry_len);
105
63d9051fe35c using readdir_r instead of readdir
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parents: 97
diff changeset
404 if(!dir_data->cur) {
63d9051fe35c using readdir_r instead of readdir
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parents: 97
diff changeset
405 closedir(sys_dir);
165
6942a8c3e737 refactors vfs code
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parents: 105
diff changeset
406 VFS_FREE(pool, dir_data);
105
63d9051fe35c using readdir_r instead of readdir
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parents: 97
diff changeset
407 return NULL;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
408 }
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
409 dir_data->dir = sys_dir;
63d9051fe35c using readdir_r instead of readdir
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parents: 97
diff changeset
410
165
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diff changeset
411 VFSDir *dir = VFS_MALLOC(pool, sizeof(VFSDir));
55
b7908bf38f9f vfs can read directories
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parents: 54
diff changeset
412 if(!dir) {
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parents: 54
diff changeset
413 closedir(sys_dir);
165
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diff changeset
414 VFS_FREE(pool, dir_data->cur);
6942a8c3e737 refactors vfs code
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parents: 105
diff changeset
415 VFS_FREE(pool, dir_data);
55
b7908bf38f9f vfs can read directories
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diff changeset
416 return NULL;
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parents: 54
diff changeset
417 }
b7908bf38f9f vfs can read directories
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diff changeset
418 dir->ctx = ctx;
105
63d9051fe35c using readdir_r instead of readdir
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diff changeset
419 dir->data = dir_data;
72
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diff changeset
420 dir->fd = dir_fd;
55
b7908bf38f9f vfs can read directories
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diff changeset
421 dir->io = &sys_dir_io;
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diff changeset
422 return dir;
b7908bf38f9f vfs can read directories
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parents: 54
diff changeset
423 }
b7908bf38f9f vfs can read directories
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parents: 54
diff changeset
424
165
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diff changeset
425 int sys_vfs_mkdir(VFSContext *ctx, char *path) {
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diff changeset
426 return sys_path_op(ctx, path, sys_mkdir);
55
b7908bf38f9f vfs can read directories
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diff changeset
427 }
b7908bf38f9f vfs can read directories
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parents: 54
diff changeset
428
165
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diff changeset
429 int sys_vfs_unlink(VFSContext *ctx, char *path) {
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parents: 105
diff changeset
430 return sys_path_op(ctx, path, sys_unlink);
56
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diff changeset
431 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
432
54
3a1d5a52adfc new vfs api
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parents:
diff changeset
433
165
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diff changeset
434 int sys_path_op(VFSContext *ctx, char *path, sys_op_f op) {
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
435 uint32_t access_mask = ctx->aclreqaccess;
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
436
c6cf20b09043 added vfs_mkdir and vfs_unlink
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parents: 55
diff changeset
437 // check ACLs
63
66442f81f823 supports file system ACLs on Solaris
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diff changeset
438 SysACL sysacl;
165
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diff changeset
439 if(sys_acl_check(ctx, access_mask, &sysacl)) {
57
b3a89736b23e some fixes
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parents: 56
diff changeset
440 return -1;
56
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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parents: 55
diff changeset
442
63
66442f81f823 supports file system ACLs on Solaris
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parents: 59
diff changeset
443 if(sysacl.acl) {
165
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parents: 105
diff changeset
444 if(!fs_acl_check(&sysacl, ctx->user, path, access_mask)) {
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
445 acl_set_error_status(ctx->sn, ctx->rq, sysacl.acl, ctx->user);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
446 return -1;
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
447 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
448 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
449
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
450 // do path operation
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
451 if(op(ctx, path, &sysacl)) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
452 // error
165
6942a8c3e737 refactors vfs code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 105
diff changeset
453 ctx->vfs_errno = errno;
6942a8c3e737 refactors vfs code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 105
diff changeset
454 sys_set_error_status(ctx);
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
455 return -1;
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
456 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
457
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
458 return 0;
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
459 }
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
460
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
461 int sys_acl_check(VFSContext *ctx, uint32_t access_mask, SysACL *sysacl) {
67
50505dc3f8a6 dynamic thread pool
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 66
diff changeset
462 if(sysacl) {
50505dc3f8a6 dynamic thread pool
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 66
diff changeset
463 sysacl->acl = NULL;
50505dc3f8a6 dynamic thread pool
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 66
diff changeset
464 }
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
465 if(!ctx) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
466 return 0;
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
467 }
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 ACLListHandle *acllist = ctx->acllist;
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
470 if(acllist) {
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
471 ACLList *acl = acl_evallist(
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
472 acllist,
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
473 ctx->user,
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
474 access_mask,
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
475 &sysacl->acl);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
476
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
477 if(acl) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
478 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
479 return 1;
54
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 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
482
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
483 return 0;
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
484 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
485
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
486 void sys_set_error_status(VFSContext *ctx) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
487 if(ctx->sn && ctx->rq) {
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
488 int status = util_errno2status(ctx->vfs_errno);
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
489 protocol_status(ctx->sn, ctx->rq, status, NULL);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
490 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
491 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
492
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
493 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
494 return read(fd->fd, buf, nbyte);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
495 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
496
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
497 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
498 return write(fd->fd, buf, nbyte);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
499 }
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
500
189
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
501 ssize_t sys_file_pread(SYS_FILE fd, void *buf, size_t nbyte, off_t offset) {
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
502 return pread(fd->fd, buf, nbyte, offset);
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
503 }
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
504
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
505 ssize_t sys_file_pwrite(SYS_FILE fd, const void *buf, size_t nbyte, off_t offset) {
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
506 return pwrite(fd->fd, buf, nbyte, offset);
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
507 }
a2438f6d1e73 adds vfs pread/pwrite functions
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 187
diff changeset
508
66
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
509 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
510 return lseek(fd->fd, offset, whence);
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
511 }
74babc0082b7 added authentication cache
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 63
diff changeset
512
54
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
513 void sys_file_close(SYS_FILE fd) {
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
514 close(fd->fd);
3a1d5a52adfc new vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
515 }
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
516
172
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
517 int sys_file_aioread(aiocb_s *aiocb) {
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
518 WS_ASSERT(aiocb->buf);
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
519 WS_ASSERT(aiocb->nbytes > 0);
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
520 return ev_aioread(aiocb->filedes->fd, aiocb);
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
521 }
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
522
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
523 int sys_file_aiowrite(aiocb_s *aiocb) {
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
524 WS_ASSERT(aiocb->buf);
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
525 WS_ASSERT(aiocb->nbytes > 0);
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
526 return ev_aiowrite(aiocb->filedes->fd, aiocb);
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
527 }
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
528
5580517faafc adds public aio and poll api and asynchronous send_range function
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 165
diff changeset
529
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
530 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
531 SysVFSDir *dirdata = dir->data;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
532 struct dirent *result = NULL;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
533 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
534 if(!s && result) {
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
535 char *name = result->d_name;
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
536 if(!strcmp(name, ".") || !strcmp(name, "..")) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
537 return sys_dir_read(dir, entry, getstat);
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
538 } else {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
539 entry->name = name;
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
540 if(getstat) {
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
541 // 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
542 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
543 entry->stat_errno = errno;
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
544 }
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
545 entry->stat_extra = NULL;
185
b4d7ccf4e06d implements new event handler and aio on linux
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 172
diff changeset
546 }
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
547 return 1;
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
548 }
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
549 } else {
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
550 return 0;
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
551 }
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
552 }
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
553
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
554 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
555 SysVFSDir *dirdata = dir->data;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
556 closedir(dirdata->dir);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
557
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
558 pool_handle_t *pool = dir->ctx->pool;
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
559 if(pool) {
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
560 pool_free(pool, dirdata->cur);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
561 pool_free(pool, dirdata);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
562 pool_free(pool, dir);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
563 } else {
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
564 free(dirdata->cur);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
565 free(dirdata);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
566 free(dir);
63d9051fe35c using readdir_r instead of readdir
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 97
diff changeset
567 }
55
b7908bf38f9f vfs can read directories
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 54
diff changeset
568 }
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
569
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
570 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
571 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
572 int ret = mkdir(path, mode);
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
573 if(ret == 0) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
574 if(sysacl->user_uid != -1) {
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
575 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
576 // TODO: error
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
577 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
578 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
579 }
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
580 return ret;
56
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
581 }
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
582
63
66442f81f823 supports file system ACLs on Solaris
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 59
diff changeset
583 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
584 return unlink(path);
c6cf20b09043 added vfs_mkdir and vfs_unlink
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 55
diff changeset
585 }
58
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
586
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
587 /* public file api */
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
588
66c22e54aa90 webdav uses the vfs api
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 57
diff changeset
589 NSAPI_PUBLIC int system_fread(SYS_FILE fd, void *buf, int nbyte) {
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590 return fd->io->read(fd, buf, nbyte);
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591 }
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592
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593 NSAPI_PUBLIC int system_fwrite(SYS_FILE fd, const void *buf, int nbyte) {
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594 return fd->io->write(fd, buf, nbyte);
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595 }
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596
189
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597 NSAPI_PUBLIC int system_pread(SYS_FILE fd, void *buf, int nbyte, off_t offset) {
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598 return fd->io->pread(fd, buf, nbyte, offset);
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599 }
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600
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601 NSAPI_PUBLIC int system_pwrite(SYS_FILE fd, const void *buf, int nbyte, off_t offset) {
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602 return fd->io->pwrite(fd, buf, nbyte, offset);
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603 }
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604
66
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605 NSAPI_PUBLIC off_t system_lseek(SYS_FILE fd, off_t offset, int whence) {
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606 return fd->io->seek(fd, offset, whence);
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607 }
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608
58
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609 NSAPI_PUBLIC int system_fclose(SYS_FILE fd) {
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610 vfs_close(fd);
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611 return 0;
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612 }
172
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613
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614 // AIO API
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615
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616 NSAPI_PUBLIC int system_aio_read(aiocb_s *aiocb) {
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617 if(!aiocb->event || !aiocb->evhandler) {
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618 return -1;
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619 }
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620
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621 SYS_FILE file = aiocb->filedes;
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622 aiocb->event->object = (intptr_t)aiocb;
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623 if(file->io->opt_aioread) {
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624 return file->io->opt_aioread(aiocb);
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625 } else {
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626 vfs_queue_aio(aiocb, VFS_AIO_READ);
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627 return 0;
172
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628 }
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629 }
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630
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631 NSAPI_PUBLIC int system_aio_write(aiocb_s *aiocb) {
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632 if(!aiocb->event || !aiocb->evhandler) {
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633 return -1;
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634 }
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635
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636 SYS_FILE file = aiocb->filedes;
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637 aiocb->event->object = (intptr_t)aiocb;
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638 if(file->io->opt_aiowrite) {
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639 return file->io->opt_aiowrite(aiocb);
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640 } else {
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641 vfs_queue_aio(aiocb, VFS_AIO_WRITE);
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642 return 0;
172
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643 }
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644 }
187
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645
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646 static void* vfs_aio_read(aiocb_s *aiocb) {
189
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647 int result = system_pread(aiocb->filedes, aiocb->buf, aiocb->nbytes, aiocb->offset);
187
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648 aiocb->result = result;
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649 if(result < 0) {
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650 aiocb->result_errno = errno;
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651 }
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652 event_send(aiocb->evhandler, aiocb->event);
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653 return NULL;
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654 }
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655
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656 static void* vfs_aio_write(aiocb_s *aiocb) {
189
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657 int result = system_pwrite(aiocb->filedes, aiocb->buf, aiocb->nbytes, aiocb->offset);
187
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658 aiocb->result = result;
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659 if(result < 0) {
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660 aiocb->result_errno = errno;
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661 }
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662 event_send(aiocb->evhandler, aiocb->event);
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663 return NULL;
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664 }
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665
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666 void vfs_queue_aio(aiocb_s *aiocb, VFSAioOp op) {
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diff changeset
667 threadpool_t *pool = get_default_iopool(); // TODO: use specific IOPool
187
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668 if(op == VFS_AIO_READ) {
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diff changeset
669 threadpool_run(pool, (job_callback_f)vfs_aio_read, aiocb);
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670 } else if(VFS_AIO_WRITE) {
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671 threadpool_run(pool, (job_callback_f)vfs_aio_write, aiocb);
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672 }
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673 }

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