Improve the handling of sharesmb,sharenfs properties

For sharesmb and sharenfs properties, the status of setting the
property is tied with whether we succeed to share the dataset or
not. In case sharing the dataset is not successful, this is
treated as overall failure of setting the property. In this case,
if we check the property after the failure, it is set to on.

This commit updates this behavior and the status of setting the
share properties is not returned as failure, when we fail to
share the dataset.

For sharenfs property, if access list is provided, the syntax
errors in access list/host adresses are not validated until after
setting the property during postfix phase while trying to
share the dataset. This is not correct, since the property has
already been set when we reach there.

Syntax errors in access list/host addresses are validated while
validating the property list, before setting the property and
failure is returned to user in this case when there are errors
in access list.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Umer Saleem <usaleem@ixsystems.com>
Closes #15240
This commit is contained in:
Umer Saleem 2023-09-05 13:33:58 +05:00 committed by Brian Behlendorf
parent e9dc31c74e
commit c53bc3837c
4 changed files with 51 additions and 11 deletions

View File

@ -4214,7 +4214,6 @@ set_callback(zfs_handle_t *zhp, void *data)
case EZFS_SHARENFSFAILED:
(void) fprintf(stderr, gettext("property may be set "
"but unable to reshare filesystem\n"));
ret = 1;
break;
}
}

View File

@ -161,7 +161,8 @@ nfs_is_shared(sa_share_impl_t impl_share)
static int
nfs_validate_shareopts(const char *shareopts)
{
(void) shareopts;
if (strlen(shareopts) == 0)
return (SA_SYNTAX_ERR);
return (SA_OK);
}

View File

@ -319,12 +319,49 @@ get_linux_shareopts_cb(const char *key, const char *value, void *cookie)
"wdelay" };
char **plinux_opts = (char **)cookie;
char *host, *val_dup, *literal, *next;
/* host-specific options, these are taken care of elsewhere */
if (strcmp(key, "ro") == 0 || strcmp(key, "rw") == 0 ||
strcmp(key, "sec") == 0)
if (strcmp(key, "sec") == 0)
return (SA_OK);
if (strcmp(key, "ro") == 0 || strcmp(key, "rw") == 0) {
if (value == NULL || strlen(value) == 0)
return (SA_OK);
val_dup = strdup(value);
host = val_dup;
if (host == NULL)
return (SA_NO_MEMORY);
do {
if (*host == '[') {
host++;
literal = strchr(host, ']');
if (literal == NULL) {
free(val_dup);
return (SA_SYNTAX_ERR);
}
if (literal[1] == '\0')
next = NULL;
else if (literal[1] == '/') {
next = strchr(literal + 2, ':');
if (next != NULL)
++next;
} else if (literal[1] == ':')
next = literal + 2;
else {
free(val_dup);
return (SA_SYNTAX_ERR);
}
} else {
next = strchr(host, ':');
if (next != NULL)
++next;
}
host = next;
} while (host != NULL);
free(val_dup);
return (SA_OK);
}
if (strcmp(key, "anon") == 0)
key = "anonuid";
@ -472,6 +509,10 @@ static int
nfs_validate_shareopts(const char *shareopts)
{
char *linux_opts = NULL;
if (strlen(shareopts) == 0)
return (SA_SYNTAX_ERR);
int error = get_linux_shareopts(shareopts, &linux_opts);
if (error != SA_OK)
return (error);

View File

@ -174,7 +174,6 @@ changelist_postfix(prop_changelist_t *clp)
prop_changenode_t *cn;
uu_avl_walk_t *walk;
char shareopts[ZFS_MAXPROPLEN];
int errors = 0;
boolean_t commit_smb_shares = B_FALSE;
boolean_t commit_nfs_shares = B_FALSE;
@ -262,19 +261,19 @@ changelist_postfix(prop_changelist_t *clp)
const enum sa_protocol nfs[] =
{SA_PROTOCOL_NFS, SA_NO_PROTOCOL};
if (sharenfs && mounted) {
errors += zfs_share(cn->cn_handle, nfs);
zfs_share(cn->cn_handle, nfs);
commit_nfs_shares = B_TRUE;
} else if (cn->cn_shared || clp->cl_waslegacy) {
errors += zfs_unshare(cn->cn_handle, NULL, nfs);
zfs_unshare(cn->cn_handle, NULL, nfs);
commit_nfs_shares = B_TRUE;
}
const enum sa_protocol smb[] =
{SA_PROTOCOL_SMB, SA_NO_PROTOCOL};
if (sharesmb && mounted) {
errors += zfs_share(cn->cn_handle, smb);
zfs_share(cn->cn_handle, smb);
commit_smb_shares = B_TRUE;
} else if (cn->cn_shared || clp->cl_waslegacy) {
errors += zfs_unshare(cn->cn_handle, NULL, smb);
zfs_unshare(cn->cn_handle, NULL, smb);
commit_smb_shares = B_TRUE;
}
}
@ -288,7 +287,7 @@ changelist_postfix(prop_changelist_t *clp)
zfs_commit_shares(proto);
uu_avl_walk_end(walk);
return (errors ? -1 : 0);
return (0);
}
/*