[PATCH v4 05/11] tools: mkeficapsule: add firmwware image signing

Sughosh Ganu sughosh.ganu at linaro.org
Mon Oct 25 11:58:57 CEST 2021


hi Masami,

On Mon, 25 Oct 2021 at 11:10, Masami Hiramatsu <masami.hiramatsu at linaro.org>
wrote:

> Hi Takahiro,
>
> 2021年10月25日(月) 12:12 AKASHI Takahiro <takahiro.akashi at linaro.org>:
> >
> > Hi, Masami,
> >
> > On Wed, Oct 20, 2021 at 05:17:12PM +0900, Masami Hiramatsu wrote:
> > > Hello Akashi-san,
> > >
> > > Can you split this patch out from this series?
> > > It seems that the series is doing several different things. This
> > > capsule signing has no alternatives, but others are modifying or
> > > replacing the current existing feature. In other words, this capsule
> > > signing feature has no alternatives, but others we can continue to
> > > use.
> >
> > What do you specifically mean by "existing feature" or "others we can
> > continue to use"?
> >
> > All the commits, I think, in this series are closely related with
> > each other.
>
> I meant I can use the devicetree to embed the authentication key in the
> U-Boot itself (currently U-Boot expects that.) Or is there any issue with
> putting the key in the devicetree?
>
> Without this patch, I can not sign the capsule file for U-Boot, since
> the GenerateCapsule in EDK2 supports old format (is that updated?)
>

If you are referring to using Version 3 of the FMP Image Header structure,
yes this has been upstreamed in EDK2. You can rebase and use the current
GenerateCapsule script. Thanks.

-sughosh


>
> Thank you,
>
>
> >
> > -Takahiro Akashi
> >
> > > Thank you,
> > >
> > > 2021年10月7日(木) 15:25 AKASHI Takahiro <takahiro.akashi at linaro.org>:
> > > >
> > > > With this enhancement, mkeficapsule will be able to sign a capsule
> > > > file when it is created. A signature added will be used later
> > > > in the verification at FMP's SetImage() call.
> > > >
> > > > To do that, We need specify additional command parameters:
> > > >   -monotonic-cout <count> : monotonic count
> > > >   -private-key <private key file> : private key file
> > > >   -certificate <certificate file> : certificate file
> > > > Only when all of those parameters are given, a signature will be
> added
> > > > to a capsule file.
> > > >
> > > > Users are expected to maintain and increment the monotonic count at
> > > > every time of the update for each firmware image.
> > > >
> > > > Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
> > > > ---
> > > >  tools/Kconfig        |   7 +
> > > >  tools/Makefile       |   8 +-
> > > >  tools/mkeficapsule.c | 435
> +++++++++++++++++++++++++++++++++++++++----
> > > >  3 files changed, 416 insertions(+), 34 deletions(-)
> > > >
> > > > diff --git a/tools/Kconfig b/tools/Kconfig
> > > > index d6f82cd949b5..9a37ed035311 100644
> > > > --- a/tools/Kconfig
> > > > +++ b/tools/Kconfig
> > > > @@ -20,4 +20,11 @@ config TOOLS_LIBCRYPTO
> > > >           This selection does not affect target features, such as
> runtime FIT
> > > >           signature verification.
> > > >
> > > > +config TOOLS_MKEFICAPSULE
> > > > +       bool "Build efimkcapsule command"
> > > > +       default y if EFI_CAPSULE_ON_DISK
> > > > +       help
> > > > +         This command allows users to create a UEFI capsule file
> and,
> > > > +         optionally sign that file. If you want to enable UEFI
> capsule
> > > > +         update feature on your target, you certainly need this.
> > > >  endmenu
> > > > diff --git a/tools/Makefile b/tools/Makefile
> > > > index 4a86321f6467..6ea3033dbfb8 100644
> > > > --- a/tools/Makefile
> > > > +++ b/tools/Makefile
> > > > @@ -237,8 +237,12 @@ hostprogs-$(CONFIG_MIPS) += mips-relocs
> > > >  hostprogs-$(CONFIG_ASN1_COMPILER)      += asn1_compiler
> > > >  HOSTCFLAGS_asn1_compiler.o = -idirafter $(srctree)/include
> > > >
> > > > -mkeficapsule-objs      := mkeficapsule.o $(LIBFDT_OBJS)
> > > > -hostprogs-$(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) += mkeficapsule
> > > > +HOSTLDLIBS_mkeficapsule += -luuid
> > > > +ifeq ($(CONFIG_TOOLS_LIBCRYPTO),y)
> > > > +HOSTLDLIBS_mkeficapsule += \
> > > > +       $(shell pkg-config --libs libssl libcrypto 2> /dev/null ||
> echo "-lssl -lcrypto")
> > > > +endif
> > > > +hostprogs-$(CONFIG_TOOLS_MKEFICAPSULE) += mkeficapsule
> > > >
> > > >  # We build some files with extra pedantic flags to try to minimize
> things
> > > >  # that won't build on some weird host compiler -- though there are
> lots of
> > > > diff --git a/tools/mkeficapsule.c b/tools/mkeficapsule.c
> > > > index 4995ba4e0c2a..5541e4bda894 100644
> > > > --- a/tools/mkeficapsule.c
> > > > +++ b/tools/mkeficapsule.c
> > > > @@ -15,6 +15,16 @@
> > > >  #include <sys/stat.h>
> > > >  #include <sys/types.h>
> > > >
> > > > +#include <linux/kconfig.h>
> > > > +#ifdef CONFIG_TOOLS_LIBCRYPTO
> > > > +#include <openssl/asn1.h>
> > > > +#include <openssl/bio.h>
> > > > +#include <openssl/evp.h>
> > > > +#include <openssl/err.h>
> > > > +#include <openssl/pem.h>
> > > > +#include <openssl/pkcs7.h>
> > > > +#endif
> > > > +
> > > >  typedef __u8 u8;
> > > >  typedef __u16 u16;
> > > >  typedef __u32 u32;
> > > > @@ -38,12 +48,25 @@ efi_guid_t efi_guid_image_type_uboot_fit =
> > > >                 EFI_FIRMWARE_IMAGE_TYPE_UBOOT_FIT_GUID;
> > > >  efi_guid_t efi_guid_image_type_uboot_raw =
> > > >                 EFI_FIRMWARE_IMAGE_TYPE_UBOOT_RAW_GUID;
> > > > +efi_guid_t efi_guid_cert_type_pkcs7 = EFI_CERT_TYPE_PKCS7_GUID;
> > > > +
> > > > +#ifdef CONFIG_TOOLS_LIBCRYPTO
> > > > +static const char *opts_short = "f:r:i:I:v:p:c:m:dh";
> > > > +#else
> > > > +static const char *opts_short = "f:r:i:I:v:h";
> > > > +#endif
> > > >
> > > >  static struct option options[] = {
> > > >         {"fit", required_argument, NULL, 'f'},
> > > >         {"raw", required_argument, NULL, 'r'},
> > > >         {"index", required_argument, NULL, 'i'},
> > > >         {"instance", required_argument, NULL, 'I'},
> > > > +#ifdef CONFIG_TOOLS_LIBCRYPTO
> > > > +       {"private-key", required_argument, NULL, 'p'},
> > > > +       {"certificate", required_argument, NULL, 'c'},
> > > > +       {"monotonic-count", required_argument, NULL, 'm'},
> > > > +       {"dump-sig", no_argument, NULL, 'd'},
> > > > +#endif
> > > >         {"help", no_argument, NULL, 'h'},
> > > >         {NULL, 0, NULL, 0},
> > > >  };
> > > > @@ -57,16 +80,280 @@ static void print_usage(void)
> > > >                "\t-r, --raw <raw image>       new raw image file\n"
> > > >                "\t-i, --index <index>         update image index\n"
> > > >                "\t-I, --instance <instance>   update hardware
> instance\n"
> > > > +#ifdef CONFIG_TOOLS_LIBCRYPTO
> > > > +              "\t-p, --private-key <privkey file>  private key
> file\n"
> > > > +              "\t-c, --certificate <cert file>     signer's
> certificate file\n"
> > > > +              "\t-m, --monotonic-count <count>     monotonic
> count\n"
> > > > +              "\t-d, --dump_sig              dump signature
> (*.p7)\n"
> > > > +#endif
> > > >                "\t-h, --help                  print a help
> message\n",
> > > >                tool_name);
> > > >  }
> > > >
> > > > +/**
> > > > + * auth_context - authentication context
> > > > + * @key_file:  Path to a private key file
> > > > + * @cert_file: Path to a certificate file
> > > > + * @image_data:        Pointer to firmware data
> > > > + * @image_size:        Size of firmware data
> > > > + * @auth:      Authentication header
> > > > + * @sig_data:  Signature data
> > > > + * @sig_size:  Size of signature data
> > > > + *
> > > > + * Data structure used in create_auth_data(). @key_file through
> > > > + * @image_size are input parameters. @auth, @sig_data and @sig_size
> > > > + * are filled in by create_auth_data().
> > > > + */
> > > > +struct auth_context {
> > > > +       char *key_file;
> > > > +       char *cert_file;
> > > > +       u8 *image_data;
> > > > +       size_t image_size;
> > > > +       struct efi_firmware_image_authentication auth;
> > > > +       u8 *sig_data;
> > > > +       size_t sig_size;
> > > > +};
> > > > +
> > > > +static int dump_sig;
> > > > +
> > > > +#ifdef CONFIG_TOOLS_LIBCRYPTO
> > > > +/**
> > > > + * fileio-read_pkey - read out a private key
> > > > + * @filename:  Path to a private key file
> > > > + *
> > > > + * Read out a private key file and parse it into "EVP_PKEY"
> structure.
> > > > + *
> > > > + * Return:
> > > > + * * Pointer to private key structure  - on success
> > > > + * * NULL - on failure
> > > > + */
> > > > +static EVP_PKEY *fileio_read_pkey(const char *filename)
> > > > +{
> > > > +       EVP_PKEY *key = NULL;
> > > > +       BIO *bio;
> > > > +
> > > > +       bio = BIO_new_file(filename, "r");
> > > > +       if (!bio)
> > > > +               goto out;
> > > > +
> > > > +       key = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL);
> > > > +
> > > > +out:
> > > > +       BIO_free_all(bio);
> > > > +       if (!key) {
> > > > +               printf("Can't load key from file '%s'\n", filename);
> > > > +               ERR_print_errors_fp(stderr);
> > > > +       }
> > > > +
> > > > +       return key;
> > > > +}
> > > > +
> > > > +/**
> > > > + * fileio-read_cert - read out a certificate
> > > > + * @filename:  Path to a certificate file
> > > > + *
> > > > + * Read out a certificate file and parse it into "X509" structure.
> > > > + *
> > > > + * Return:
> > > > + * * Pointer to certificate structure  - on success
> > > > + * * NULL - on failure
> > > > + */
> > > > +static X509 *fileio_read_cert(const char *filename)
> > > > +{
> > > > +       X509 *cert = NULL;
> > > > +       BIO *bio;
> > > > +
> > > > +       bio = BIO_new_file(filename, "r");
> > > > +       if (!bio)
> > > > +               goto out;
> > > > +
> > > > +       cert = PEM_read_bio_X509(bio, NULL, NULL, NULL);
> > > > +
> > > > +out:
> > > > +       BIO_free_all(bio);
> > > > +       if (!cert) {
> > > > +               printf("Can't load certificate from file '%s'\n",
> filename);
> > > > +               ERR_print_errors_fp(stderr);
> > > > +       }
> > > > +
> > > > +       return cert;
> > > > +}
> > > > +
> > > > +/**
> > > > + * create_auth_data - compose authentication data in capsule
> > > > + * @auth_context:      Pointer to authentication context
> > > > + *
> > > > + * Fill up an authentication header (.auth) and signature data
> (.sig_data)
> > > > + * in @auth_context, using library functions from openssl.
> > > > + * All the parameters in @auth_context must be filled in by a
> caller.
> > > > + *
> > > > + * Return:
> > > > + * * 0  - on success
> > > > + * * -1 - on failure
> > > > + */
> > > > +static int create_auth_data(struct auth_context *ctx)
> > > > +{
> > > > +       EVP_PKEY *key = NULL;
> > > > +       X509 *cert = NULL;
> > > > +       BIO *data_bio = NULL;
> > > > +       const EVP_MD *md;
> > > > +       PKCS7 *p7;
> > > > +       int flags, ret = -1;
> > > > +
> > > > +       OpenSSL_add_all_digests();
> > > > +       OpenSSL_add_all_ciphers();
> > > > +       ERR_load_crypto_strings();
> > > > +
> > > > +       key = fileio_read_pkey(ctx->key_file);
> > > > +       if (!key)
> > > > +               goto err;
> > > > +       cert = fileio_read_cert(ctx->cert_file);
> > > > +       if (!cert)
> > > > +               goto err;
> > > > +
> > > > +       /*
> > > > +        * create a BIO, containing:
> > > > +        *  * firmware image
> > > > +        *  * monotonic count
> > > > +        * in this order!
> > > > +        * See EDK2's FmpAuthenticatedHandlerRsa2048Sha256()
> > > > +        */
> > > > +       data_bio = BIO_new(BIO_s_mem());
> > > > +       BIO_write(data_bio, ctx->image_data, ctx->image_size);
> > > > +       BIO_write(data_bio, &ctx->auth.monotonic_count,
> > > > +                 sizeof(ctx->auth.monotonic_count));
> > > > +
> > > > +       md = EVP_get_digestbyname("SHA256");
> > > > +       if (!md)
> > > > +               goto err;
> > > > +
> > > > +       /* create signature */
> > > > +       /* TODO: maybe add PKCS7_NOATTR and PKCS7_NOSMIMECAP */
> > > > +       flags = PKCS7_BINARY | PKCS7_DETACHED;
> > > > +       p7 = PKCS7_sign(NULL, NULL, NULL, data_bio, flags |
> PKCS7_PARTIAL);
> > > > +       if (!p7)
> > > > +               goto err;
> > > > +       if (!PKCS7_sign_add_signer(p7, cert, key, md, flags))
> > > > +               goto err;
> > > > +       if (!PKCS7_final(p7, data_bio, flags))
> > > > +               goto err;
> > > > +
> > > > +       /* convert pkcs7 into DER */
> > > > +       ctx->sig_data = NULL;
> > > > +       ctx->sig_size = ASN1_item_i2d((ASN1_VALUE *)p7,
> &ctx->sig_data,
> > > > +                                     ASN1_ITEM_rptr(PKCS7));
> > > > +       if (!ctx->sig_size)
> > > > +               goto err;
> > > > +
> > > > +       /* fill auth_info */
> > > > +       ctx->auth.auth_info.hdr.dwLength =
> sizeof(ctx->auth.auth_info)
> > > > +                                               + ctx->sig_size;
> > > > +       ctx->auth.auth_info.hdr.wRevision = WIN_CERT_REVISION_2_0;
> > > > +       ctx->auth.auth_info.hdr.wCertificateType =
> WIN_CERT_TYPE_EFI_GUID;
> > > > +       memcpy(&ctx->auth.auth_info.cert_type,
> &efi_guid_cert_type_pkcs7,
> > > > +              sizeof(efi_guid_cert_type_pkcs7));
> > > > +
> > > > +       ret = 0;
> > > > +err:
> > > > +       BIO_free_all(data_bio);
> > > > +       EVP_PKEY_free(key);
> > > > +       X509_free(cert);
> > > > +
> > > > +       return ret;
> > > > +}
> > > > +
> > > > +/**
> > > > + * dump_signature - dump out a signature
> > > > + * @path:      Path to a capsule file
> > > > + * @signature: Signature data
> > > > + * @sig_size:  Size of signature data
> > > > + *
> > > > + * Signature data pointed to by @signature will be saved into
> > > > + * a file whose file name is @path with ".p7" suffix.
> > > > + *
> > > > + * Return:
> > > > + * * 0  - on success
> > > > + * * -1 - on failure
> > > > + */
> > > > +static int dump_signature(const char *path, u8 *signature, size_t
> sig_size)
> > > > +{
> > > > +       char *sig_path;
> > > > +       FILE *f;
> > > > +       size_t size;
> > > > +       int ret = -1;
> > > > +
> > > > +       sig_path = malloc(strlen(path) + 3 + 1);
> > > > +       if (!sig_path)
> > > > +               return ret;
> > > > +
> > > > +       sprintf(sig_path, "%s.p7", path);
> > > > +       f = fopen(sig_path, "w");
> > > > +       if (!f)
> > > > +               goto err;
> > > > +
> > > > +       size = fwrite(signature, 1, sig_size, f);
> > > > +       if (size == sig_size)
> > > > +               ret = 0;
> > > > +
> > > > +       fclose(f);
> > > > +err:
> > > > +       free(sig_path);
> > > > +       return ret;
> > > > +}
> > > > +
> > > > +/**
> > > > + * free_sig_data - free out signature data
> > > > + * @ctx:       Pointer to authentication context
> > > > + *
> > > > + * Free signature data allocated in create_auth_data().
> > > > + */
> > > > +static void free_sig_data(struct auth_context *ctx)
> > > > +{
> > > > +       if (ctx->sig_size)
> > > > +               OPENSSL_free(ctx->sig_data);
> > > > +}
> > > > +#else
> > > > +static int create_auth_data(struct auth_context *ctx)
> > > > +{
> > > > +       return 0;
> > > > +}
> > > > +
> > > > +static int dump_signature(const char *path, u8 *signature, size_t
> sig_size)
> > > > +{
> > > > +       return 0;
> > > > +}
> > > > +
> > > > +static void free_sig_data(struct auth_context *ctx) {}
> > > > +#endif
> > > > +
> > > > +/**
> > > > + * create_fwbin - create an uefi capsule file
> > > > + * @path:      Path to a created capsule file
> > > > + * @bin:       Path to a firmware binary to encapsulate
> > > > + * @guid:      GUID of related FMP driver
> > > > + * @index:     Index number in capsule
> > > > + * @instance:  Instance number in capsule
> > > > + * @mcount:    Monotonic count in authentication information
> > > > + * @private_file:      Path to a private key file
> > > > + * @cert_file: Path to a certificate file
> > > > + *
> > > > + * This function actually does the job of creating an uefi capsule
> file.
> > > > + * All the arguments must be supplied.
> > > > + * If either @private_file ror @cert_file is NULL, the capsule file
> > > > + * won't be signed.
> > > > + *
> > > > + * Return:
> > > > + * * 0  - on success
> > > > + * * -1 - on failure
> > > > + */
> > > >  static int create_fwbin(char *path, char *bin, efi_guid_t *guid,
> > > > -                       unsigned long index, unsigned long instance)
> > > > +                       unsigned long index, unsigned long instance,
> > > > +                       uint64_t mcount, char *privkey_file, char
> *cert_file)
> > > >  {
> > > >         struct efi_capsule_header header;
> > > >         struct efi_firmware_management_capsule_header capsule;
> > > >         struct efi_firmware_management_capsule_image_header image;
> > > > +       struct auth_context auth_context;
> > > >         FILE *f, *g;
> > > >         struct stat bin_stat;
> > > >         u8 *data;
> > > > @@ -76,8 +363,9 @@ static int create_fwbin(char *path, char *bin,
> efi_guid_t *guid,
> > > >  #ifdef DEBUG
> > > >         printf("For output: %s\n", path);
> > > >         printf("\tbin: %s\n\ttype: %pUl\n", bin, guid);
> > > > -       printf("\tindex: %ld\n\tinstance: %ld\n", index, instance);
> > > > +       printf("\tindex: %lu\n\tinstance: %lu\n", index, instance);
> > > >  #endif
> > > > +       auth_context.sig_size = 0;
> > > >
> > > >         g = fopen(bin, "r");
> > > >         if (!g) {
> > > > @@ -93,11 +381,34 @@ static int create_fwbin(char *path, char *bin,
> efi_guid_t *guid,
> > > >                 printf("cannot allocate memory: %zx\n",
> (size_t)bin_stat.st_size);
> > > >                 goto err_1;
> > > >         }
> > > > -       f = fopen(path, "w");
> > > > -       if (!f) {
> > > > -               printf("cannot open %s\n", path);
> > > > +
> > > > +       size = fread(data, 1, bin_stat.st_size, g);
> > > > +       if (size < bin_stat.st_size) {
> > > > +               printf("read failed (%zx)\n", size);
> > > >                 goto err_2;
> > > >         }
> > > > +
> > > > +       /* first, calculate signature to determine its size */
> > > > +       if (privkey_file && cert_file) {
> > > > +               auth_context.key_file = privkey_file;
> > > > +               auth_context.cert_file = cert_file;
> > > > +               auth_context.auth.monotonic_count = mcount;
> > > > +               auth_context.image_data = data;
> > > > +               auth_context.image_size = bin_stat.st_size;
> > > > +
> > > > +               if (create_auth_data(&auth_context)) {
> > > > +                       printf("Signing firmware image failed\n");
> > > > +                       goto err_3;
> > > > +               }
> > > > +
> > > > +               if (dump_sig &&
> > > > +                   dump_signature(path, auth_context.sig_data,
> > > > +                                  auth_context.sig_size)) {
> > > > +                       printf("Creating signature file failed\n");
> > > > +                       goto err_3;
> > > > +               }
> > > > +       }
> > > > +
> > > >         header.capsule_guid = efi_guid_fm_capsule;
> > > >         header.header_size = sizeof(header);
> > > >         /* TODO: The current implementation ignores flags */
> > > > @@ -106,11 +417,20 @@ static int create_fwbin(char *path, char *bin,
> efi_guid_t *guid,
> > > >                                         + sizeof(capsule) +
> sizeof(u64)
> > > >                                         + sizeof(image)
> > > >                                         + bin_stat.st_size;
> > > > +       if (auth_context.sig_size)
> > > > +               header.capsule_image_size +=
> sizeof(auth_context.auth)
> > > > +                               + auth_context.sig_size;
> > > > +
> > > > +       f = fopen(path, "w");
> > > > +       if (!f) {
> > > > +               printf("cannot open %s\n", path);
> > > > +               goto err_3;
> > > > +       }
> > > >
> > > >         size = fwrite(&header, 1, sizeof(header), f);
> > > >         if (size < sizeof(header)) {
> > > >                 printf("write failed (%zx)\n", size);
> > > > -               goto err_3;
> > > > +               goto err_4;
> > > >         }
> > > >
> > > >         capsule.version = 0x00000001;
> > > > @@ -119,13 +439,13 @@ static int create_fwbin(char *path, char *bin,
> efi_guid_t *guid,
> > > >         size = fwrite(&capsule, 1, sizeof(capsule), f);
> > > >         if (size < (sizeof(capsule))) {
> > > >                 printf("write failed (%zx)\n", size);
> > > > -               goto err_3;
> > > > +               goto err_4;
> > > >         }
> > > >         offset = sizeof(capsule) + sizeof(u64);
> > > >         size = fwrite(&offset, 1, sizeof(offset), f);
> > > >         if (size < sizeof(offset)) {
> > > >                 printf("write failed (%zx)\n", size);
> > > > -               goto err_3;
> > > > +               goto err_4;
> > > >         }
> > > >
> > > >         image.version = 0x00000003;
> > > > @@ -135,34 +455,53 @@ static int create_fwbin(char *path, char *bin,
> efi_guid_t *guid,
> > > >         image.reserved[1] = 0;
> > > >         image.reserved[2] = 0;
> > > >         image.update_image_size = bin_stat.st_size;
> > > > +       if (auth_context.sig_size)
> > > > +               image.update_image_size += sizeof(auth_context.auth)
> > > > +                               + auth_context.sig_size;
> > > >         image.update_vendor_code_size = 0; /* none */
> > > >         image.update_hardware_instance = instance;
> > > >         image.image_capsule_support = 0;
> > > > +       if (auth_context.sig_size)
> > > > +               image.image_capsule_support |=
> CAPSULE_SUPPORT_AUTHENTICATION;
> > > >
> > > >         size = fwrite(&image, 1, sizeof(image), f);
> > > >         if (size < sizeof(image)) {
> > > >                 printf("write failed (%zx)\n", size);
> > > > -               goto err_3;
> > > > +               goto err_4;
> > > >         }
> > > > -       size = fread(data, 1, bin_stat.st_size, g);
> > > > -       if (size < bin_stat.st_size) {
> > > > -               printf("read failed (%zx)\n", size);
> > > > -               goto err_3;
> > > > +
> > > > +       if (auth_context.sig_size) {
> > > > +               size = fwrite(&auth_context.auth, 1,
> > > > +                             sizeof(auth_context.auth), f);
> > > > +               if (size < sizeof(auth_context.auth)) {
> > > > +                       printf("write failed (%zx)\n", size);
> > > > +                       goto err_4;
> > > > +               }
> > > > +               size = fwrite(auth_context.sig_data, 1,
> > > > +                             auth_context.sig_size, f);
> > > > +               if (size < auth_context.sig_size) {
> > > > +                       printf("write failed (%zx)\n", size);
> > > > +                       goto err_4;
> > > > +               }
> > > >         }
> > > > +
> > > >         size = fwrite(data, 1, bin_stat.st_size, f);
> > > >         if (size < bin_stat.st_size) {
> > > >                 printf("write failed (%zx)\n", size);
> > > > -               goto err_3;
> > > > +               goto err_4;
> > > >         }
> > > >
> > > >         fclose(f);
> > > >         fclose(g);
> > > >         free(data);
> > > > +       free_sig_data(&auth_context);
> > > >
> > > >         return 0;
> > > >
> > > > -err_3:
> > > > +err_4:
> > > >         fclose(f);
> > > > +err_3:
> > > > +       free_sig_data(&auth_context);
> > > >  err_2:
> > > >         free(data);
> > > >  err_1:
> > > > @@ -171,23 +510,37 @@ err_1:
> > > >         return -1;
> > > >  }
> > > >
> > > > -/*
> > > > - * Usage:
> > > > - *   $ mkeficapsule -f <firmware binary> <output file>
> > > > +/**
> > > > + * main - main entry function of mkeficapsule
> > > > + * @argc:      Number of arguments
> > > > + * @argv:      Array of pointers to arguments
> > > > + *
> > > > + * Create an uefi capsule file, optionally signing it.
> > > > + * Parse all the arguments and pass them on to create_fwbin().
> > > > + *
> > > > + * Return:
> > > > + * * 0  - on success
> > > > + * * -1 - on failure
> > > >   */
> > > >  int main(int argc, char **argv)
> > > >  {
> > > >         char *file;
> > > >         efi_guid_t *guid;
> > > >         unsigned long index, instance;
> > > > +       uint64_t mcount;
> > > > +       char *privkey_file, *cert_file;
> > > >         int c, idx;
> > > >
> > > >         file = NULL;
> > > >         guid = NULL;
> > > >         index = 0;
> > > >         instance = 0;
> > > > +       mcount = 0;
> > > > +       privkey_file = NULL;
> > > > +       cert_file = NULL;
> > > > +       dump_sig = 0;
> > > >         for (;;) {
> > > > -               c = getopt_long(argc, argv, "f:r:i:I:v:h", options,
> &idx);
> > > > +               c = getopt_long(argc, argv, opts_short, options,
> &idx);
> > > >                 if (c == -1)
> > > >                         break;
> > > >
> > > > @@ -214,29 +567,47 @@ int main(int argc, char **argv)
> > > >                 case 'I':
> > > >                         instance = strtoul(optarg, NULL, 0);
> > > >                         break;
> > > > +#ifdef CONFIG_TOOLS_LIBCRYPTO
> > > > +               case 'p':
> > > > +                       if (privkey_file) {
> > > > +                               printf("Private Key already
> specified\n");
> > > > +                               return -1;
> > > > +                       }
> > > > +                       privkey_file = optarg;
> > > > +                       break;
> > > > +               case 'c':
> > > > +                       if (cert_file) {
> > > > +                               printf("Certificate file already
> specified\n");
> > > > +                               return -1;
> > > > +                       }
> > > > +                       cert_file = optarg;
> > > > +                       break;
> > > > +               case 'm':
> > > > +                       mcount = strtoul(optarg, NULL, 0);
> > > > +                       break;
> > > > +               case 'd':
> > > > +                       dump_sig = 1;
> > > > +                       break;
> > > > +#endif /* CONFIG_TOOLS_LIBCRYPTO */
> > > >                 case 'h':
> > > >                         print_usage();
> > > >                         return 0;
> > > >                 }
> > > >         }
> > > >
> > > > -       /* need an output file */
> > > > -       if (argc != optind + 1) {
> > > > -               print_usage();
> > > > -               exit(EXIT_FAILURE);
> > > > -       }
> > > > -
> > > > -       /* need a fit image file or raw image file */
> > > > -       if (!file) {
> > > > +       /* check necessary parameters */
> > > > +       if ((argc != optind + 1) || !file ||
> > > > +           ((privkey_file && !cert_file) ||
> > > > +            (!privkey_file && cert_file))) {
> > > >                 print_usage();
> > > > -               exit(EXIT_SUCCESS);
> > > > +               return -1;
> > > >         }
> > > >
> > > > -       if (create_fwbin(argv[optind], file, guid, index, instance)
> > > > -                       < 0) {
> > > > +       if (create_fwbin(argv[optind], file, guid, index, instance,
> > > > +                        mcount, privkey_file, cert_file) < 0) {
> > > >                 printf("Creating firmware capsule failed\n");
> > > > -               exit(EXIT_FAILURE);
> > > > +               return -1;
> > > >         }
> > > >
> > > > -       exit(EXIT_SUCCESS);
> > > > +       return 0;
> > > >  }
> > > > --
> > > > 2.33.0
> > > >
> > >
> > >
> > > --
> > > Masami Hiramatsu
>
>
>
> --
> Masami Hiramatsu
>


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