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lx_fs: handle errors on mkdir correctly

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Fixes #2444
This commit is contained in:
Christian Prochaska 2017-06-12 16:02:11 +02:00 committed by Christian Helmuth
parent c8e4d2715b
commit a1b1525ec1
3 changed files with 18 additions and 10 deletions
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14
repos/base-linux/run/lx_fs.run
View File

@ -31,7 +31,8 @@ install_config {
<default-route>
<any-service> <parent/> <any-child/> </any-service>
</default-route>
<start name="lx_fs">
<default caps="100"/>
<start name="lx_fs" caps="200">
<resource name="RAM" quantum="4M"/>
<provides> <service name="File_system"/> </provides>
<config> <policy label_prefix="test-libc_vfs" root="/libc_vfs" writeable="yes" /> </config>
@ -39,12 +40,11 @@ install_config {
<start name="test-libc_vfs">
<resource name="RAM" quantum="2M"/>
<config>
<libc stdout="/dev/log">
<vfs>
<fs />
<dir name="dev"> <log/> </dir>
</vfs>
</libc>
<vfs>
<fs />
<dir name="dev"> <log/> </dir>
</vfs>
<libc stdout="/dev/log"/>
</config>
</start>
</config>

2
repos/libports/src/test/libc_ffat/main.cc
View File

@ -120,7 +120,7 @@ static void test(Genode::Xml_node node)
CALL_AND_CHECK(ret, mkdir(dir_name, 0777), ((ret == 0) || (errno == EEXIST)), "dir_name=%s", dir_name);
/* try to create again */
CALL_AND_CHECK(ret, mkdir(dir_name, 0777), ((ret == 0) || (errno == EEXIST)), "dir_name=%s", dir_name);
CALL_AND_CHECK(ret, mkdir(dir_name, 0777), (errno == EEXIST), "dir_name=%s", dir_name);
/* change to new directory */
CALL_AND_CHECK(ret, chdir(dir_name), ret == 0, "dir_name=%s", dir_name);

12
repos/os/src/server/lx_fs/directory.h
View File

@ -42,8 +42,16 @@ class File_system::Directory : public Node
if (create) {
mode_t ugo = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
ret = mkdir(path, ugo);
if (ret == -1)
throw No_space();
if (ret == -1) {
switch (errno) {
case ENAMETOOLONG: throw Name_too_long();
case EACCES: throw Permission_denied();
case ENOENT: throw Lookup_failed();
case EEXIST: throw Node_already_exists();
case ENOSPC:
default: throw No_space();
}
}
}
struct stat s;