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util: storagefile: Properly set transport type when parsing NBD strings

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When parsing legacy NBD backing file strings such as
'nbd:unix:/tmp/sock:exportname=/' we'd fail to set the transport to
VIR_STORAGE_NET_HOST_TRANS_UNIX. This started to be a problem once we
actually started to generate config of the backing store on the command
line with -blockdev as the JSON code would try to format it as TCP and
fail with:

 internal error: argument key 'host' must not have null value

Set the type properly and add a test.

This bug was found by the libguestfs test suite in:

https://bugzilla.redhat.com/show_bug.cgi?id=1791614

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reported-by: Ming Xie <mxie@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
This commit is contained in:
Peter Krempa 2020-01-16 12:34:13 +01:00
parent 9bb3571f10
commit 5f2fa393f7
2 changed files with 5 additions and 1 deletions
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2
src/util/virstoragefile.c
View File

@ -2964,7 +2964,7 @@ virStorageSourceParseNBDColonString(const char *nbdstr,
}
src->hosts->socket = g_strdup(backing[2]);
src->hosts->transport = VIR_STORAGE_NET_HOST_TRANS_UNIX;
} else {
src->hosts->name = g_strdup(backing[1]);

4
tests/virstoragetest.c
View File

@ -1258,6 +1258,10 @@ mymain(void)
"<source protocol='nbd' name=':test'>\n"
" <host name='example.org' port='6000'/>\n"
"</source>\n");
TEST_BACKING_PARSE("nbd:unix:/tmp/sock:exportname=/",
"<source protocol='nbd' name='/'>\n"
" <host transport='unix' socket='/tmp/sock'/>\n"
"</source>\n");
TEST_BACKING_PARSE("nbd://example.org:1234",
"<source protocol='nbd'>\n"
" <host name='example.org' port='1234'/>\n"