Accepting request 223348 from home:gary_lin:branches:Base:System
add an option to revoke the built-in certificate in shim OBS-URL: https://build.opensuse.org/request/show/223348 OBS-URL: https://build.opensuse.org/package/show/Base:System/mokutil?expand=0&rev=18
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145
mokutil-support-revoke-builtin-cert.patch
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145
mokutil-support-revoke-builtin-cert.patch
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@ -0,0 +1,145 @@
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From 0ebfada39e35d3366dfce45158a33f7624907d1f Mon Sep 17 00:00:00 2001
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From: Gary Ching-Pang Lin <glin@suse.com>
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Date: Fri, 21 Feb 2014 17:56:55 +0800
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Subject: [PATCH] Add the option to revoke the built-in certificate
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This is an openSUSE-only patch.
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This commit adds an option to create ClearVerify which contains
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the password hash to notify MokManager to show the option to
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revoke the built-in certificate.
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---
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src/mokutil.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 82 insertions(+)
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diff --git a/src/mokutil.c b/src/mokutil.c
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index 1c32313..14adae7 100644
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--- a/src/mokutil.c
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+++ b/src/mokutil.c
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@@ -83,6 +83,7 @@ EFI_GUID (0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b,
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#define IMPORT_HASH (1 << 21)
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#define DELETE_HASH (1 << 22)
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#define VERBOSITY (1 << 23)
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+#define REVOKE_CERT (1 << 24)
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#define DEFAULT_CRYPT_METHOD SHA512_BASED
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#define DEFAULT_SALT_SIZE SHA512_SALT_MAX
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@@ -151,6 +152,7 @@ print_help ()
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printf (" --kek\t\t\t\t\tList the keys in KEK\n");
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printf (" --db\t\t\t\t\tList the keys in db\n");
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printf (" --dbx\t\t\t\t\tList the keys in dbx\n");
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+ printf (" --revoke-cert\t\t\t\tRevoke the built-in certificate in shim\n");
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printf ("\n");
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printf ("Supplimentary Options:\n");
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printf (" --hash-file <hash file>\t\tUse the specific password hash\n");
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@@ -1903,6 +1905,79 @@ set_verbosity (uint8_t verbosity)
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return 0;
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}
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+static int
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+revoke_builtin_cert (void)
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+{
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+ efi_variable_t var;
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+ pw_crypt_t pw_crypt;
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+ uint8_t auth[SHA256_DIGEST_LENGTH];
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+ char *password = NULL;
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+ int pw_len;
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+ int auth_ret;
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+ int ret = -1;
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+
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+ /* Check use_openSUSE_cert */
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+ memset (&var, 0, sizeof(var));
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+ var.VariableName = "use_openSUSE_cert";
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+ var.VendorGuid = SHIM_LOCK_GUID;
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+
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+ if (read_variable (&var) != EFI_SUCCESS)
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+ return 0;
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+
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+ if ((uint8_t)*var.Data != 1) {
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+ free (var.Data);
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+ fprintf (stderr, "The built-in certificate is already revoked.\n");
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+ return 0;
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+ }
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+ free (var.Data);
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+
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+ memset (&pw_crypt, 0, sizeof(pw_crypt_t));
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+ memset (auth, 0, SHA256_DIGEST_LENGTH);
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+
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+ if (get_password (&password, &pw_len, PASSWORD_MIN, PASSWORD_MAX) < 0) {
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+ fprintf (stderr, "Abort\n");
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+ goto error;
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+ }
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+
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+ if (!use_simple_hash) {
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+ pw_crypt.method = DEFAULT_CRYPT_METHOD;
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+ auth_ret = generate_hash (&pw_crypt, password, pw_len);
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+ } else {
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+ auth_ret = generate_auth (NULL, 0, password, pw_len,
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+ auth);
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+ }
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+ if (auth_ret < 0) {
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+ fprintf (stderr, "Couldn't generate hash\n");
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+ goto error;
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+ }
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+
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+ if (!use_simple_hash) {
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+ var.Data = (void *)&pw_crypt;
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+ var.DataSize = PASSWORD_CRYPT_SIZE;
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+ } else {
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+ var.Data = (void *)auth;
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+ var.DataSize = SHA256_DIGEST_LENGTH;
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+ }
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+ var.VariableName = "ClearVerify";
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+
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+ var.VendorGuid = SHIM_LOCK_GUID;
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+ var.Attributes = EFI_VARIABLE_NON_VOLATILE
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+ | EFI_VARIABLE_BOOTSERVICE_ACCESS
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+ | EFI_VARIABLE_RUNTIME_ACCESS;
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+
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+ if (edit_protected_variable (&var) != EFI_SUCCESS) {
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+ fprintf (stderr, "Failed to write ClearVerify\n");
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+ goto error;
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+ }
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+
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+ ret = 0;
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+error:
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+ if (password)
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+ free (password);
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+
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+ return ret;
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+}
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+
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static inline int
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list_db (DBName db_name)
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{
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@@ -1974,6 +2049,7 @@ main (int argc, char *argv[])
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{"kek", no_argument, 0, 0 },
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{"db", no_argument, 0, 0 },
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{"dbx", no_argument, 0, 0 },
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+ {"revoke-cert", no_argument, 0, 0 },
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{0, 0, 0, 0}
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};
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@@ -2061,6 +2137,8 @@ main (int argc, char *argv[])
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command |= LIST_ENROLLED;
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db_name = DBX;
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}
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+ } else if (strcmp (option, "revoke-cert") == 0) {
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+ command |= REVOKE_CERT;
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}
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break;
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@@ -2303,6 +2381,10 @@ main (int argc, char *argv[])
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case VERBOSITY:
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ret = set_verbosity (verbosity);
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break;
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+ case REVOKE_CERT:
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+ case REVOKE_CERT | SIMPLE_HASH:
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+ ret = revoke_builtin_cert ();
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+ break;
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default:
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print_help ();
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break;
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--
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1.8.4.5
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@ -1,3 +1,9 @@
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-------------------------------------------------------------------
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Fri Feb 21 10:10:15 UTC 2014 - glin@suse.com
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- Add mokutil-support-revoke-builtin-cert.patch to add an option to
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revoke the built-in certificate in shim
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-------------------------------------------------------------------
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Wed Feb 12 10:06:31 UTC 2014 - glin@suse.com
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@ -32,6 +32,8 @@ Patch2: mokutil-mokx-support.patch
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Patch3: mokutil-fix-hash-list-size.patch
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# PATCH-FIX-UPSTREAM mokutil-clean-request.patch glin@suse.com -- Clear the request if all keys are removed
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Patch4: mokutil-clean-request.patch
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# PATCH-FIX-OPENSUSE mokutil-support-revoke-builtin-cert.patch glin@suse.com -- Add an option to revoke the built-in certificate
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Patch100: mokutil-support-revoke-builtin-cert.patch
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BuildRequires: autoconf
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BuildRequires: automake
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BuildRequires: libopenssl-devel >= 0.9.8
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@ -55,6 +57,7 @@ Authors:
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%patch2 -p1
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%patch3 -p1
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%patch4 -p1
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%patch100 -p1
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%build
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%configure
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