diff options
| -rw-r--r-- | block/rbd.c | 87 |
1 files changed, 44 insertions, 43 deletions
diff --git a/block/rbd.c b/block/rbd.c index 498322b30b..fbdb131a68 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -20,6 +20,7 @@ #include "crypto/secret.h" #include "qemu/cutils.h" #include "qapi/qmp/qstring.h" +#include "qapi/qmp/qjson.h" /* * When specifying the image filename use: @@ -135,18 +136,16 @@ static void qemu_rbd_parse_filename(const char *filename, QDict *options, Error **errp) { const char *start; - char *p, *buf, *keypairs; + char *p, *buf; + QList *keypairs = NULL; char *found_str; - size_t max_keypair_size; if (!strstart(filename, "rbd:", &start)) { error_setg(errp, "File name must start with 'rbd:'"); return; } - max_keypair_size = strlen(start) + 1; buf = g_strdup(start); - keypairs = g_malloc0(max_keypair_size); p = buf; found_str = qemu_rbd_next_tok(p, '/', &p); @@ -194,33 +193,30 @@ static void qemu_rbd_parse_filename(const char *filename, QDict *options, } else if (!strcmp(name, "id")) { qdict_put(options, "user" , qstring_from_str(value)); } else { - /* FIXME: This is pretty ugly, and not the right way to do this. - * These should be contained in a structure, and then - * passed explicitly as individual key/value pairs to - * rados. Consider this legacy code that needs to be - * updated. */ - char *tmp = g_malloc0(max_keypair_size); - /* only use a delimiter if it is not the first keypair found */ - /* These are sets of unknown key/value pairs we'll pass along - * to ceph */ - if (keypairs[0]) { - snprintf(tmp, max_keypair_size, ":%s=%s", name, value); - pstrcat(keypairs, max_keypair_size, tmp); - } else { - snprintf(keypairs, max_keypair_size, "%s=%s", name, value); + /* + * We pass these internally to qemu_rbd_set_keypairs(), so + * we can get away with the simpler list of [ "key1", + * "value1", "key2", "value2" ] rather than a raw dict + * { "key1": "value1", "key2": "value2" } where we can't + * guarantee order, or even a more correct but complex + * [ { "key1": "value1" }, { "key2": "value2" } ] + */ + if (!keypairs) { + keypairs = qlist_new(); } - g_free(tmp); + qlist_append(keypairs, qstring_from_str(name)); + qlist_append(keypairs, qstring_from_str(value)); } } - if (keypairs[0]) { - qdict_put(options, "=keyvalue-pairs", qstring_from_str(keypairs)); + if (keypairs) { + qdict_put(options, "=keyvalue-pairs", + qobject_to_json(QOBJECT(keypairs))); } - done: g_free(buf); - g_free(keypairs); + QDECREF(keypairs); return; } @@ -244,36 +240,41 @@ static int qemu_rbd_set_auth(rados_t cluster, const char *secretid, return 0; } -static int qemu_rbd_set_keypairs(rados_t cluster, const char *keypairs, +static int qemu_rbd_set_keypairs(rados_t cluster, const char *keypairs_json, Error **errp) { - char *p, *buf; - char *name; - char *value; + QList *keypairs; + QString *name; + QString *value; + const char *key; + size_t remaining; int ret = 0; - buf = g_strdup(keypairs); - p = buf; - - while (p) { - name = qemu_rbd_next_tok(p, '=', &p); - if (!p) { - error_setg(errp, "conf option %s has no value", name); - ret = -EINVAL; - break; - } - - value = qemu_rbd_next_tok(p, ':', &p); - - ret = rados_conf_set(cluster, name, value); + if (!keypairs_json) { + return ret; + } + keypairs = qobject_to_qlist(qobject_from_json(keypairs_json, + &error_abort)); + remaining = qlist_size(keypairs) / 2; + assert(remaining); + + while (remaining--) { + name = qobject_to_qstring(qlist_pop(keypairs)); + value = qobject_to_qstring(qlist_pop(keypairs)); + assert(name && value); + key = qstring_get_str(name); + + ret = rados_conf_set(cluster, key, qstring_get_str(value)); + QDECREF(name); + QDECREF(value); if (ret < 0) { - error_setg_errno(errp, -ret, "invalid conf option %s", name); + error_setg_errno(errp, -ret, "invalid conf option %s", key); ret = -EINVAL; break; } } - g_free(buf); + QDECREF(keypairs); return ret; } |