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authorKevin Wolf <kwolf@redhat.com>2016-12-08 14:23:07 +0100
committerJeff Cody <jcody@redhat.com>2017-02-21 10:36:57 -0500
commit4317142020921c6dcdcfda7a349a91088d969f14 (patch)
treede4acfa4bdbec9348940a0897314156d4f803650
parentd5895fcb1de8f6de3cc63a413d7052b98091e191 (diff)
iscsi: Handle -iscsi user/password in bdrv_parse_filename()
This splits the logic in the old parse_chap() function into a part that parses the -iscsi options into the new driver-specific options, and another part that actually applies those options (called apply_chap() now). Note that this means that username and password specified with -iscsi only take effect when a URL is provided. This is intentional, -iscsi is a legacy interface only supported for compatibility, new users should use the proper driver-specific options. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com>
-rw-r--r--block/iscsi.c78
1 files changed, 44 insertions, 34 deletions
diff --git a/block/iscsi.c b/block/iscsi.c
index d61d3d8617..ec26fc6863 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1245,29 +1245,14 @@ retry:
return 0;
}
-static void parse_chap(struct iscsi_context *iscsi, const char *target,
+static void apply_chap(struct iscsi_context *iscsi, QemuOpts *opts,
Error **errp)
{
- QemuOptsList *list;
- QemuOpts *opts;
const char *user = NULL;
const char *password = NULL;
const char *secretid;
char *secret = NULL;
- list = qemu_find_opts("iscsi");
- if (!list) {
- return;
- }
-
- opts = qemu_opts_find(list, target);
- if (opts == NULL) {
- opts = QTAILQ_FIRST(&list->head);
- if (!opts) {
- return;
- }
- }
-
user = qemu_opt_get(opts, "user");
if (!user) {
return;
@@ -1600,6 +1585,41 @@ out:
}
}
+static void iscsi_parse_iscsi_option(const char *target, QDict *options)
+{
+ QemuOptsList *list;
+ QemuOpts *opts;
+ const char *user, *password, *password_secret;
+
+ list = qemu_find_opts("iscsi");
+ if (!list) {
+ return;
+ }
+
+ opts = qemu_opts_find(list, target);
+ if (opts == NULL) {
+ opts = QTAILQ_FIRST(&list->head);
+ if (!opts) {
+ return;
+ }
+ }
+
+ user = qemu_opt_get(opts, "user");
+ if (user) {
+ qdict_set_default_str(options, "user", user);
+ }
+
+ password = qemu_opt_get(opts, "password");
+ if (password) {
+ qdict_set_default_str(options, "password", password);
+ }
+
+ password_secret = qemu_opt_get(opts, "password-secret");
+ if (password_secret) {
+ qdict_set_default_str(options, "password-secret", password_secret);
+ }
+}
+
/*
* We support iscsi url's on the form
* iscsi://[<username>%<password>@]<host>[:<port>]/<targetname>/<lun>
@@ -1642,6 +1662,9 @@ static void iscsi_parse_filename(const char *filename, QDict *options,
qdict_set_default_str(options, "lun", lun_str);
g_free(lun_str);
+ /* User/password from -iscsi take precedence over those from the URL */
+ iscsi_parse_iscsi_option(iscsi_url->target, options);
+
if (iscsi_url->user[0] != '\0') {
qdict_set_default_str(options, "user", iscsi_url->user);
qdict_set_default_str(options, "password", iscsi_url->passwd);
@@ -1676,6 +1699,10 @@ static QemuOptsList runtime_opts = {
.type = QEMU_OPT_STRING,
},
{
+ .name = "password-secret",
+ .type = QEMU_OPT_STRING,
+ },
+ {
.name = "lun",
.type = QEMU_OPT_NUMBER,
},
@@ -1695,7 +1722,6 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
QemuOpts *opts;
Error *local_err = NULL;
const char *transport_name, *portal, *target;
- const char *user, *password;
#if LIBISCSI_API_VERSION >= (20160603)
enum iscsi_transport_type transport;
#endif
@@ -1712,8 +1738,6 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
transport_name = qemu_opt_get(opts, "transport");
portal = qemu_opt_get(opts, "portal");
target = qemu_opt_get(opts, "target");
- user = qemu_opt_get(opts, "user");
- password = qemu_opt_get(opts, "password");
lun = qemu_opt_get_number(opts, "lun", 0);
if (!transport_name || !portal || !target) {
@@ -1721,11 +1745,6 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
ret = -EINVAL;
goto out;
}
- if (user && !password) {
- error_setg(errp, "If a user name is given, a password is required");
- ret = -EINVAL;
- goto out;
- }
if (!strcmp(transport_name, "tcp")) {
#if LIBISCSI_API_VERSION >= (20160603)
@@ -1764,17 +1783,8 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
goto out;
}
- if (user) {
- ret = iscsi_set_initiator_username_pwd(iscsi, user, password);
- if (ret != 0) {
- error_setg(errp, "Failed to set initiator username and password");
- ret = -EINVAL;
- goto out;
- }
- }
-
/* check if we got CHAP username/password via the options */
- parse_chap(iscsi, target, &local_err);
+ apply_chap(iscsi, opts, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
ret = -EINVAL;