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lvconvert: improve vg parameter parsing

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Commit abd9618dd8 tried to improve
parsing of vg name from logical path - but still missed couple
corner cases.

This patch further improves the logic and reuses
validate_lvname_param() for parsing of lv_name.

Also explicitly checks for LVM_VG_NAME in the right case.

So now also properly parses cases like:
  'lvconvert --repairt vg/'
and will provide correct error message.
This commit is contained in:
Zdenek Kabelac 2016-03-08 10:13:38 +01:00
parent 5c415afd85
commit 70cbd8f1a5
2 changed files with 11 additions and 15 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.146 -
=================================
Another attempt to improve VG name parsing for lvconvert (2.02.144).
Use new cache status info and skip flushing for failed cache.
Support --uncache with missing PVs.
Tidy report field names, headings and widths.

23
tools/lvconvert.c
View File

@ -115,9 +115,6 @@ static int _lvconvert_name_params(struct lvconvert_params *lp,
struct cmd_context *cmd,
int *pargc, char ***pargv)
{
char *ptr;
const char *vg_name = NULL;
if (lp->merge) {
if (!*pargc) {
log_error("Please specify a logical volume path.");
@ -174,26 +171,24 @@ static int _lvconvert_name_params(struct lvconvert_params *lp,
if (!validate_restricted_lvname_param(cmd, &lp->vg_name, &lp->lv_split_name))
return_0;
if ((vg_name = extract_vgname(cmd, lp->lv_name_full)) &&
lp->vg_name && strcmp(vg_name, lp->vg_name)) {
log_error("Please use a single volume group name "
"(\"%s\" or \"%s\")", vg_name, lp->vg_name);
if (!lp->vg_name && !strchr(lp->lv_name_full, '/')) {
/* Check for $LVM_VG_NAME */
if (!(lp->vg_name = extract_vgname(cmd, NULL))) {
log_error("Please specify a logical volume path.");
return 0;
}
}
if (!lp->vg_name)
lp->vg_name = vg_name;
if (!validate_lvname_param(cmd, &lp->vg_name, &lp->lv_name_full))
return_0;
lp->lv_name = lp->lv_name_full;
if (!validate_name(lp->vg_name)) {
log_error("Please provide a valid volume group name");
return 0;
}
if ((ptr = strrchr(lp->lv_name_full, '/')))
lp->lv_name = ptr + 1;
else
lp->lv_name = lp->lv_name_full;
if (!lp->merge_mirror &&
!lp->repair &&
!arg_count(cmd, splitmirrors_ARG) &&