block.c (779020cbdc67011026c10fb620f701bfc6b85547) block.c (15489c769b9a4b3bec5b5848af2960689d7b4bd8)
1/*
2 * QEMU System Emulator block driver
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights

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758
759 return open_flags;
760}
761
762static void bdrv_assign_node_name(BlockDriverState *bs,
763 const char *node_name,
764 Error **errp)
765{
1/*
2 * QEMU System Emulator block driver
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights

--- 749 unchanged lines hidden (view full) ---

758
759 return open_flags;
760}
761
762static void bdrv_assign_node_name(BlockDriverState *bs,
763 const char *node_name,
764 Error **errp)
765{
766 if (!node_name) {
767 return;
768 }
766 char *gen_node_name = NULL;
769
767
770 /* Check for empty string or invalid characters */
771 if (!id_wellformed(node_name)) {
768 if (!node_name) {
769 node_name = gen_node_name = id_generate(ID_BLOCK);
770 } else if (!id_wellformed(node_name)) {
771 /*
772 * Check for empty string or invalid characters, but not if it is
773 * generated (generated names use characters not available to the user)
774 */
772 error_setg(errp, "Invalid node name");
773 return;
774 }
775
776 /* takes care of avoiding namespaces collisions */
777 if (blk_by_name(node_name)) {
778 error_setg(errp, "node-name=%s is conflicting with a device id",
779 node_name);
775 error_setg(errp, "Invalid node name");
776 return;
777 }
778
779 /* takes care of avoiding namespaces collisions */
780 if (blk_by_name(node_name)) {
781 error_setg(errp, "node-name=%s is conflicting with a device id",
782 node_name);
780 return;
783 goto out;
781 }
782
783 /* takes care of avoiding duplicates node names */
784 if (bdrv_find_node(node_name)) {
785 error_setg(errp, "Duplicate node name");
784 }
785
786 /* takes care of avoiding duplicates node names */
787 if (bdrv_find_node(node_name)) {
788 error_setg(errp, "Duplicate node name");
786 return;
789 goto out;
787 }
788
789 /* copy node name into the bs and insert it into the graph list */
790 pstrcpy(bs->node_name, sizeof(bs->node_name), node_name);
791 QTAILQ_INSERT_TAIL(&graph_bdrv_states, bs, node_list);
790 }
791
792 /* copy node name into the bs and insert it into the graph list */
793 pstrcpy(bs->node_name, sizeof(bs->node_name), node_name);
794 QTAILQ_INSERT_TAIL(&graph_bdrv_states, bs, node_list);
795out:
796 g_free(gen_node_name);
792}
793
794static QemuOptsList bdrv_runtime_opts = {
795 .name = "bdrv_common",
796 .head = QTAILQ_HEAD_INITIALIZER(bdrv_runtime_opts.head),
797 .desc = {
798 {
799 .name = "node-name",

--- 3357 unchanged lines hidden --- 		797}
798
799static QemuOptsList bdrv_runtime_opts = {
800 .name = "bdrv_common",
801 .head = QTAILQ_HEAD_INITIALIZER(bdrv_runtime_opts.head),
802 .desc = {
803 {
804 .name = "node-name",

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