Use minimum 512B of header with delta updates

danielinux · danielinux · commit 93866f73763e · 2024-11-26T11:04:09.000+01:00
diff --git a/tools/keytools/sign.c b/tools/keytools/sign.c
@@ -2263,6 +2263,10 @@ static void set_signature_sizes(int secondary)
         else
             printf("Environment variable IMAGE_HEADER_SIZE=%u overridden.\n", suggested_sz);
     }
+    if ((CMD.header_sz == 256) && (CMD.delta)) {
+        printf("Adjusting header size to fit base image of delta update \n");
+        CMD.header_sz <<= 1;
+    }
     printf("Manifest header size: %u\n", CMD.header_sz);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -2263,6 +2263,10 @@ static void set_signature_sizes(int secondary)`
`2263`	`2263`	`else`
`2264`	`2264`	`printf("Environment variable IMAGE_HEADER_SIZE=%u overridden.\n", suggested_sz);`
`2265`	`2265`	`}`
	`2266`	`+ if ((CMD.header_sz == 256) && (CMD.delta)) {`
	`2267`	`+ printf("Adjusting header size to fit base image of delta update \n");`
	`2268`	`+ CMD.header_sz <<= 1;`
	`2269`	`+ }`
`2266`	`2270`	`printf("Manifest header size: %u\n", CMD.header_sz);`
`2267`	`2271`	`}`
`2268`	`2272`