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-rw-r--r--src/shared/dissect-image.c39
-rw-r--r--src/shared/gpt.h2
2 files changed, 38 insertions, 3 deletions
diff --git a/src/shared/dissect-image.c b/src/shared/dissect-image.c
index 878cb008aa..c17486cba2 100644
--- a/src/shared/dissect-image.c
+++ b/src/shared/dissect-image.c
@@ -347,9 +347,6 @@ int dissect_image(int fd, const void *root_hash, size_t root_hash_size, DissectI
sd_id128_t type_id, id;
bool rw = true;
- if (pflags & GPT_FLAG_NO_AUTO)
- continue;
-
sid = blkid_partition_get_uuid(pp);
if (!sid)
continue;
@@ -363,18 +360,37 @@ int dissect_image(int fd, const void *root_hash, size_t root_hash_size, DissectI
continue;
if (sd_id128_equal(type_id, GPT_HOME)) {
+
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
designator = PARTITION_HOME;
rw = !(pflags & GPT_FLAG_READ_ONLY);
} else if (sd_id128_equal(type_id, GPT_SRV)) {
+
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
designator = PARTITION_SRV;
rw = !(pflags & GPT_FLAG_READ_ONLY);
} else if (sd_id128_equal(type_id, GPT_ESP)) {
+
+ /* Note that we don't check the GPT_FLAG_NO_AUTO flag for the ESP, as it is not defined
+ * there. We instead check the GPT_FLAG_NO_BLOCK_IO_PROTOCOL, as recommended by the
+ * UEFI spec (See "12.3.3 Number and Location of System Partitions"). */
+
+ if (pflags & GPT_FLAG_NO_BLOCK_IO_PROTOCOL)
+ continue;
+
designator = PARTITION_ESP;
fstype = "vfat";
}
#ifdef GPT_ROOT_NATIVE
else if (sd_id128_equal(type_id, GPT_ROOT_NATIVE)) {
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
/* If a root ID is specified, ignore everything but the root id */
if (!sd_id128_is_null(root_uuid) && !sd_id128_equal(root_uuid, id))
continue;
@@ -384,6 +400,9 @@ int dissect_image(int fd, const void *root_hash, size_t root_hash_size, DissectI
rw = !(pflags & GPT_FLAG_READ_ONLY);
} else if (sd_id128_equal(type_id, GPT_ROOT_NATIVE_VERITY)) {
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
m->can_verity = true;
/* Ignore verity unless a root hash is specified */
@@ -399,6 +418,9 @@ int dissect_image(int fd, const void *root_hash, size_t root_hash_size, DissectI
#ifdef GPT_ROOT_SECONDARY
else if (sd_id128_equal(type_id, GPT_ROOT_SECONDARY)) {
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
/* If a root ID is specified, ignore everything but the root id */
if (!sd_id128_is_null(root_uuid) && !sd_id128_equal(root_uuid, id))
continue;
@@ -407,6 +429,10 @@ int dissect_image(int fd, const void *root_hash, size_t root_hash_size, DissectI
architecture = SECONDARY_ARCHITECTURE;
rw = !(pflags & GPT_FLAG_READ_ONLY);
} else if (sd_id128_equal(type_id, GPT_ROOT_SECONDARY_VERITY)) {
+
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
m->can_verity = true;
/* Ignore verity unless root has is specified */
@@ -420,10 +446,17 @@ int dissect_image(int fd, const void *root_hash, size_t root_hash_size, DissectI
}
#endif
else if (sd_id128_equal(type_id, GPT_SWAP)) {
+
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
designator = PARTITION_SWAP;
fstype = "swap";
} else if (sd_id128_equal(type_id, GPT_LINUX_GENERIC)) {
+ if (pflags & GPT_FLAG_NO_AUTO)
+ continue;
+
if (generic_node)
multiple_generic = true;
else {
diff --git a/src/shared/gpt.h b/src/shared/gpt.h
index 13d80d611c..cc752006fa 100644
--- a/src/shared/gpt.h
+++ b/src/shared/gpt.h
@@ -71,6 +71,8 @@
# define GPT_ROOT_NATIVE_VERITY GPT_ROOT_ARM_VERITY
#endif
+#define GPT_FLAG_NO_BLOCK_IO_PROTOCOL (1ULL << 1)
+
/* Flags we recognize on the root, swap, home and srv partitions when
* doing auto-discovery. These happen to be identical to what
* Microsoft defines for its own Basic Data Partitions, but that's