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cmd: avb: Support A/B slots

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Add optional parameter to 'avb verify' sub-command, so that user is able
to specify which slot to use, in case when user's partitions are
slotted. If that parameter is omitted, the behavior of 'avb verify' will
be the same as before, so user API is content.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Igor Opaniuk <igor.opaniuk@gmail.com>
Acked-by: Igor Opaniuk <igor.opaniuk@gmail.com>
This commit is contained in:
Sam Protsenko
2019-10-21 13:55:16 +03:00
committed by Tom Rini
parent bb43c27847
commit 965ec3caa8
2 changed files with 13 additions and 4 deletions
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13
cmd/avb.c
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@@ -232,6 +232,7 @@ int do_avb_verify_part(cmd_tbl_t *cmdtp, int flag,
AvbSlotVerifyData *out_data;
char *cmdline;
char *extra_args;
char *slot_suffix = "";
bool unlocked = false;
int res = CMD_RET_FAILURE;
@@ -241,9 +242,12 @@ int do_avb_verify_part(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_FAILURE;
}
if (argc != 1)
if (argc < 1 || argc > 2)
return CMD_RET_USAGE;
if (argc == 2)
slot_suffix = argv[1];
printf("## Android Verified Boot 2.0 version %s\n",
avb_version_string());
@@ -256,7 +260,7 @@ int do_avb_verify_part(cmd_tbl_t *cmdtp, int flag,
slot_result =
avb_slot_verify(avb_ops,
requested_partitions,
"",
slot_suffix,
unlocked,
AVB_HASHTREE_ERROR_MODE_RESTART_AND_INVALIDATE,
&out_data);
@@ -416,7 +420,7 @@ static cmd_tbl_t cmd_avb[] = {
U_BOOT_CMD_MKENT(read_part, 5, 0, do_avb_read_part, "", ""),
U_BOOT_CMD_MKENT(read_part_hex, 4, 0, do_avb_read_part_hex, "", ""),
U_BOOT_CMD_MKENT(write_part, 5, 0, do_avb_write_part, "", ""),
U_BOOT_CMD_MKENT(verify, 1, 0, do_avb_verify_part, "", ""),
U_BOOT_CMD_MKENT(verify, 2, 0, do_avb_verify_part, "", ""),
#ifdef CONFIG_OPTEE_TA_AVB
U_BOOT_CMD_MKENT(read_pvalue, 3, 0, do_avb_read_pvalue, "", ""),
U_BOOT_CMD_MKENT(write_pvalue, 3, 0, do_avb_write_pvalue, "", ""),
@@ -459,6 +463,7 @@ U_BOOT_CMD(
"avb read_pvalue <name> <bytes> - read a persistent value <name>\n"
"avb write_pvalue <name> <value> - write a persistent value <name>\n"
#endif
"avb verify - run verification process using hash data\n"
"avb verify [slot_suffix] - run verification process using hash data\n"
" from vbmeta structure\n"
" [slot_suffix] - _a, _b, etc (if vbmeta partition is slotted)\n"
);