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cmd: avb: rework prints

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Simplify and add more context for prints where it's needed.

Signed-off-by: Igor Opaniuk <igor.opaniuk@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20240209192045.3961832-5-igor.opaniuk@foundries.io
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
This commit is contained in:
Igor Opaniuk
2024-02-09 20:20:42 +01:00
committed by Mattijs Korpershoek
parent 0508a7c667
commit 0ef0825a8c
1 changed files with 75 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

123
cmd/avb.c
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@@ -11,6 +11,7 @@
#include <mmc.h>
#define AVB_BOOTARGS "avb_bootargs"
static struct AvbOps *avb_ops;
int do_avb_init(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
@@ -28,8 +29,10 @@ int do_avb_init(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
avb_ops = avb_ops_alloc(mmc_dev);
if (avb_ops)
return CMD_RET_SUCCESS;
else
printf("Can't allocate AvbOps");
printf("Failed to initialize avb2\n");
printf("Failed to initialize AVB\n");
return CMD_RET_FAILURE;
}
@@ -41,10 +44,11 @@ int do_avb_read_part(struct cmd_tbl *cmdtp, int flag, int argc,
s64 offset;
size_t bytes, bytes_read = 0;
void *buffer;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, please run 'avb init'\n");
return CMD_RET_USAGE;
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
if (argc != 5)
@@ -55,14 +59,15 @@ int do_avb_read_part(struct cmd_tbl *cmdtp, int flag, int argc,
bytes = hextoul(argv[3], NULL);
buffer = (void *)hextoul(argv[4], NULL);
if (avb_ops->read_from_partition(avb_ops, part, offset, bytes,
buffer, &bytes_read) ==
AVB_IO_RESULT_OK) {
ret = avb_ops->read_from_partition(avb_ops, part, offset,
bytes, buffer, &bytes_read);
if (ret == AVB_IO_RESULT_OK) {
printf("Read %zu bytes\n", bytes_read);
return CMD_RET_SUCCESS;
}
printf("Failed to read from partition\n");
printf("Failed to read from partition '%s', err = %d\n",
part, ret);
return CMD_RET_FAILURE;
}
@@ -74,10 +79,11 @@ int do_avb_read_part_hex(struct cmd_tbl *cmdtp, int flag, int argc,
s64 offset;
size_t bytes, bytes_read = 0;
char *buffer;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, please run 'avb init'\n");
return CMD_RET_USAGE;
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
if (argc != 4)
@@ -94,8 +100,9 @@ int do_avb_read_part_hex(struct cmd_tbl *cmdtp, int flag, int argc,
}
memset(buffer, 0, bytes);
if (avb_ops->read_from_partition(avb_ops, part, offset, bytes, buffer,
&bytes_read) == AVB_IO_RESULT_OK) {
ret = avb_ops->read_from_partition(avb_ops, part, offset,
bytes, buffer, &bytes_read);
if (ret == AVB_IO_RESULT_OK) {
printf("Requested %zu, read %zu bytes\n", bytes, bytes_read);
printf("Data: ");
for (int i = 0; i < bytes_read; i++)
@@ -107,7 +114,8 @@ int do_avb_read_part_hex(struct cmd_tbl *cmdtp, int flag, int argc,
return CMD_RET_SUCCESS;
}
printf("Failed to read from partition\n");
printf("Failed to read from partition '%s', err = %d\n",
part, ret);
free(buffer);
return CMD_RET_FAILURE;
@@ -120,9 +128,10 @@ int do_avb_write_part(struct cmd_tbl *cmdtp, int flag, int argc,
s64 offset;
size_t bytes;
void *buffer;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -134,13 +143,15 @@ int do_avb_write_part(struct cmd_tbl *cmdtp, int flag, int argc,
bytes = hextoul(argv[3], NULL);
buffer = (void *)hextoul(argv[4], NULL);
if (avb_ops->write_to_partition(avb_ops, part, offset, bytes, buffer) ==
AVB_IO_RESULT_OK) {
ret = avb_ops->write_to_partition(avb_ops, part, offset,
bytes, buffer);
if (ret == AVB_IO_RESULT_OK) {
printf("Wrote %zu bytes\n", bytes);
return CMD_RET_SUCCESS;
}
printf("Failed to write in partition\n");
printf("Failed to write in partition '%s', err = %d\n",
part, ret);
return CMD_RET_FAILURE;
}
@@ -150,9 +161,10 @@ int do_avb_read_rb(struct cmd_tbl *cmdtp, int flag, int argc,
{
size_t index;
u64 rb_idx;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -161,13 +173,14 @@ int do_avb_read_rb(struct cmd_tbl *cmdtp, int flag, int argc,
index = (size_t)hextoul(argv[1], NULL);
if (avb_ops->read_rollback_index(avb_ops, index, &rb_idx) ==
AVB_IO_RESULT_OK) {
ret = avb_ops->read_rollback_index(avb_ops, index, &rb_idx);
if (ret == AVB_IO_RESULT_OK) {
printf("Rollback index: %llx\n", rb_idx);
return CMD_RET_SUCCESS;
}
printf("Failed to read rollback index\n");
printf("Failed to read rollback index id = %zu, err = %d\n",
index, ret);
return CMD_RET_FAILURE;
}
@@ -177,9 +190,10 @@ int do_avb_write_rb(struct cmd_tbl *cmdtp, int flag, int argc,
{
size_t index;
u64 rb_idx;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -189,11 +203,12 @@ int do_avb_write_rb(struct cmd_tbl *cmdtp, int flag, int argc,
index = (size_t)hextoul(argv[1], NULL);
rb_idx = hextoul(argv[2], NULL);
if (avb_ops->write_rollback_index(avb_ops, index, rb_idx) ==
AVB_IO_RESULT_OK)
ret = avb_ops->write_rollback_index(avb_ops, index, rb_idx);
if (ret == AVB_IO_RESULT_OK)
return CMD_RET_SUCCESS;
printf("Failed to write rollback index\n");
printf("Failed to write rollback index id = %zu, err = %d\n",
index, ret);
return CMD_RET_FAILURE;
}
@@ -203,9 +218,10 @@ int do_avb_get_uuid(struct cmd_tbl *cmdtp, int flag,
{
const char *part;
char buffer[UUID_STR_LEN + 1];
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -214,14 +230,16 @@ int do_avb_get_uuid(struct cmd_tbl *cmdtp, int flag,
part = argv[1];
if (avb_ops->get_unique_guid_for_partition(avb_ops, part, buffer,
UUID_STR_LEN + 1) ==
AVB_IO_RESULT_OK) {
ret = avb_ops->get_unique_guid_for_partition(avb_ops, part,
buffer,
UUID_STR_LEN + 1);
if (ret == AVB_IO_RESULT_OK) {
printf("'%s' UUID: %s\n", part, buffer);
return CMD_RET_SUCCESS;
}
printf("Failed to read UUID\n");
printf("Failed to read partition '%s' UUID, err = %d\n",
part, ret);
return CMD_RET_FAILURE;
}
@@ -235,12 +253,13 @@ int do_avb_verify_part(struct cmd_tbl *cmdtp, int flag,
char *cmdline;
char *extra_args;
char *slot_suffix = "";
int ret;
bool unlocked = false;
int res = CMD_RET_FAILURE;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -253,9 +272,10 @@ int do_avb_verify_part(struct cmd_tbl *cmdtp, int flag,
printf("## Android Verified Boot 2.0 version %s\n",
avb_version_string());
if (avb_ops->read_is_device_unlocked(avb_ops, &unlocked) !=
AVB_IO_RESULT_OK) {
printf("Can't determine device lock state.\n");
ret = avb_ops->read_is_device_unlocked(avb_ops, &unlocked);
if (ret != AVB_IO_RESULT_OK) {
printf("Can't determine device lock state, err = %d\n",
ret);
return CMD_RET_FAILURE;
}
@@ -302,10 +322,10 @@ int do_avb_verify_part(struct cmd_tbl *cmdtp, int flag,
printf("Corrupted dm-verity metadata detected\n");
break;
case AVB_SLOT_VERIFY_RESULT_ERROR_UNSUPPORTED_VERSION:
printf("Unsupported version avbtool was used\n");
printf("Unsupported version of avbtool was used\n");
break;
case AVB_SLOT_VERIFY_RESULT_ERROR_ROLLBACK_INDEX:
printf("Checking rollback index failed\n");
printf("Rollback index check failed\n");
break;
case AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED:
printf("Public key was rejected\n");
@@ -324,9 +344,10 @@ int do_avb_is_unlocked(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
bool unlock;
int ret;
if (!avb_ops) {
printf("AVB not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -335,13 +356,14 @@ int do_avb_is_unlocked(struct cmd_tbl *cmdtp, int flag,
return CMD_RET_USAGE;
}
if (avb_ops->read_is_device_unlocked(avb_ops, &unlock) ==
AVB_IO_RESULT_OK) {
ret = avb_ops->read_is_device_unlocked(avb_ops, &unlock);
if (ret == AVB_IO_RESULT_OK) {
printf("Unlocked = %d\n", unlock);
return CMD_RET_SUCCESS;
}
printf("Can't determine device lock state.\n");
printf("Can't determine device lock state, err = %d\n",
ret);
return CMD_RET_FAILURE;
}
@@ -354,9 +376,10 @@ int do_avb_read_pvalue(struct cmd_tbl *cmdtp, int flag, int argc,
size_t bytes_read;
void *buffer;
char *endp;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -372,15 +395,16 @@ int do_avb_read_pvalue(struct cmd_tbl *cmdtp, int flag, int argc,
if (!buffer)
return CMD_RET_FAILURE;
if (avb_ops->read_persistent_value(avb_ops, name, bytes, buffer,
&bytes_read) == AVB_IO_RESULT_OK) {
ret = avb_ops->read_persistent_value(avb_ops, name, bytes,
buffer, &bytes_read);
if (ret == AVB_IO_RESULT_OK) {
printf("Read %zu bytes, value = %s\n", bytes_read,
(char *)buffer);
free(buffer);
return CMD_RET_SUCCESS;
}
printf("Failed to read persistent value\n");
printf("Failed to read persistent value, err = %d\n", ret);
free(buffer);
@@ -392,9 +416,10 @@ int do_avb_write_pvalue(struct cmd_tbl *cmdtp, int flag, int argc,
{
const char *name;
const char *value;
int ret;
if (!avb_ops) {
printf("AVB 2.0 is not initialized, run 'avb init' first\n");
printf("AVB is not initialized, please run 'avb init <id>'\n");
return CMD_RET_FAILURE;
}
@@ -404,14 +429,16 @@ int do_avb_write_pvalue(struct cmd_tbl *cmdtp, int flag, int argc,
name = argv[1];
value = argv[2];
if (avb_ops->write_persistent_value(avb_ops, name, strlen(value) + 1,
(const uint8_t *)value) ==
AVB_IO_RESULT_OK) {
ret = avb_ops->write_persistent_value(avb_ops, name,
strlen(value) + 1,
(const uint8_t *)value);
if (ret == AVB_IO_RESULT_OK) {
printf("Wrote %zu bytes\n", strlen(value) + 1);
return CMD_RET_SUCCESS;
}
printf("Failed to write persistent value\n");
printf("Failed to write persistent value `%s` = `%s`, err = %d\n",
name, value, ret);
return CMD_RET_FAILURE;
}