Secure Boot: Enforce PNOR section component IDs

- In secure mode, bootloader will enforce that HBB component ID is set
- In secure mode, Hostboot will enforce that PNOR component IDs are set

Change-Id: I04f3bbc45417b3229003c56e1083e1fc31c01cd7
RTC: 179422
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/48711
Reviewed-by: Michael Baiocchi <mbaiocch@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Marshall J. Wilks <mjwilks@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Stephen M. Cprek <smcprek@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>

2 files changed, 58 insertions, 23 deletions

diff --git a/src/lib/string.C b/src/lib/string.C
index 004345372..43e46f6cc 100644
--- a/src/lib/string.C
+++ b/src/lib/string.C
@@ -78,28 +78,6 @@ extern "C" char* strcpy(char* d, const char* s)
     } while(1);
 }
 
-extern "C" char* strncpy(char* d, const char* s, size_t l)
-{
-    char* d1 = d;
-    size_t len = 0;
-
-    do
-    {
-        if (len++ >= l) break;
-        *d1 = *s;
-        if (*s == '\0') break;
-        d1++; s++;
-    } while(1);
-
-    // pad the remainder
-    while( len < l )
-    {
-        d1[len++] = '\0';
-    }
-
-    return d;
-}
-
 extern "C" int strcmp(const char* a, const char* b)
 {
     while((*a != '\0') && (*b != '\0'))
diff --git a/src/lib/string_utils.C b/src/lib/string_utils.C
index 79a8bf709..27d9228fb 100644
--- a/src/lib/string_utils.C
+++ b/src/lib/string_utils.C
@@ -120,4 +120,61 @@ extern "C" int memcmp(const void *p1, const void *p2, size_t len)
     }
 
     return 0;
-}
\ No newline at end of file
+}
+
+extern "C" int strncmp(const char* a, const char* b, size_t l)
+{
+    if(l==0)
+    {
+        return 0;
+    }
+
+    const char* begin=a;
+    while(   (*a != '\0') && (*b != '\0')
+          && (static_cast<size_t>(a-begin)+1<l) )
+    {
+        if (*a == *b)
+        {
+            a++; b++;
+        }
+        else
+        {
+            return (*a > *b) ? 1 : -1;
+        }
+    }
+    if (*a == *b)
+    {
+        return 0;
+    }
+    if (*a == '\0')
+    {
+        return -1;
+    }
+    else
+    {
+        return 1;
+    }
+}
+
+extern "C" char* strncpy(char* d, const char* s, size_t l)
+{
+    char* d1 = d;
+    size_t len = 0;
+
+    do
+    {
+        if (len++ >= l) break;
+        *d1 = *s;
+        if (*s == '\0') break;
+        d1++; s++;
+    } while(1);
+
+    // pad the remainder
+    while( len < l )
+    {
+        d1[len++] = '\0';
+    }
+
+    return d;
+}
+