[PATCH 2/5] mkeficapsule: add support for multiple payloads inside capsule

Sughosh Ganu sughosh.ganu at linaro.org
Fri Jun 16 14:26:14 CEST 2023


hi Stefan,

On Fri, 16 Jun 2023 at 17:04, Stefan Herbrechtsmeier
<stefan.herbrechtsmeier-oss at weidmueller.com> wrote:
>
> From: Malte Schmidt <malte.schmidt at weidmueller.com>
>
> The UEFI [1] specification allows multiple payloads inside the capsule
> body. Add support for this. The command line arguments are kept
> backwards-compatible.
>
> [1] https://uefi.org/specs/UEFI/2.10/index.html

I am trying to upstream support for specifying the capsule parameters
for multiple payloads through a config file [1]. This is on similar
lines to the support in the Edk2 GenerateCapule tool where multiple
payloads can be specified through a json file. I think you can base
your changes on my series.

-sughosh

[1] - https://lore.kernel.org/u-boot/20230613103806.812065-1-sughosh.ganu@linaro.org/T/#mc8c0500863bd3a1580c572679370a565f8d7f2c8

>
> Signed-off-by: Malte Schmidt <malte.schmidt at weidmueller.com>
> Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier at weidmueller.com>
> ---
>
>  tools/eficapsule.h   |   5 -
>  tools/mkeficapsule.c | 636 ++++++++++++++++++++++++++++++++-----------
>  2 files changed, 475 insertions(+), 166 deletions(-)
>
> diff --git a/tools/eficapsule.h b/tools/eficapsule.h
> index 753fb73313..001af3217c 100644
> --- a/tools/eficapsule.h
> +++ b/tools/eficapsule.h
> @@ -138,9 +138,4 @@ struct fmp_payload_header {
>         uint32_t lowest_supported_version;
>  };
>
> -struct fmp_payload_header_params {
> -       bool have_header;
> -       uint32_t fw_version;
> -};
> -
>  #endif /* _EFI_CAPSULE_H */
> diff --git a/tools/mkeficapsule.c b/tools/mkeficapsule.c
> index b8db00b16b..1a4de0f092 100644
> --- a/tools/mkeficapsule.c
> +++ b/tools/mkeficapsule.c
> @@ -29,7 +29,7 @@ static const char *tool_name = "mkeficapsule";
>  efi_guid_t efi_guid_fm_capsule = EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID;
>  efi_guid_t efi_guid_cert_type_pkcs7 = EFI_CERT_TYPE_PKCS7_GUID;
>
> -static const char *opts_short = "g:i:I:v:p:c:m:o:dhAR";
> +static const char *opts_short = "g:i:b:I:v:p:c:m:o:dhAR";
>
>  enum {
>         CAPSULE_NORMAL_BLOB = 0,
> @@ -40,6 +40,7 @@ enum {
>  static struct option options[] = {
>         {"guid", required_argument, NULL, 'g'},
>         {"index", required_argument, NULL, 'i'},
> +       {"image_blob", required_argument, NULL, 'b'},
>         {"instance", required_argument, NULL, 'I'},
>         {"fw-version", required_argument, NULL, 'v'},
>         {"private-key", required_argument, NULL, 'p'},
> @@ -55,21 +56,22 @@ static struct option options[] = {
>
>  static void print_usage(void)
>  {
> -       fprintf(stderr, "Usage: %s [options] <image blob> <output file>\n"
> +       fprintf(stderr, "Usage: %s [options] [<image blob>] <output file>\n"
>                 "Options:\n"
>
> -               "\t-g, --guid <guid string>    guid for image blob type\n"
> -               "\t-i, --index <index>         update image index\n"
> -               "\t-I, --instance <instance>   update hardware instance\n"
> -               "\t-v, --fw-version <version>  firmware version\n"
> -               "\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"
> -               "\t-A, --fw-accept  firmware accept capsule, requires GUID, no image blob\n"
> -               "\t-R, --fw-revert  firmware revert capsule, takes no GUID, no image blob\n"
> -               "\t-o, --capoemflag Capsule OEM Flag, an integer between 0x0000 and 0xffff\n"
> -               "\t-h, --help                  print a help message\n",
> +               "\t-g, --guid <guid list>           comma-separated list of guids for image blob types\n"
> +               "\t-i, --index <index list>         comma-separated list of update image indices\n"
> +               "\t-b, --image_blob <blob list>     comma-separated list of image blobs\n"
> +               "\t-I, --instance <instance list>   comma-separated list of update hardware instances\n"
> +               "\t-v, --fw-version <version list>  comma-separated list of firmware versions\n"
> +               "\t-p, --private-key <privkey file>              private key file\n"
> +               "\t-c, --certificate <cert file>                 signer's certificate file\n"
> +               "\t-m, --monotonic-count <monotonic-count list>  comma-separated list of monotonic counts\n"
> +               "\t-d, --dump_sig                                dump signature (*.p7)\n"
> +               "\t-A, --fw-accept   firmware accept capsule, requires GUID, no image blob\n"
> +               "\t-R, --fw-revert   firmware revert capsule, takes no GUID, no image blob\n"
> +               "\t-o, --capoemflag  capsule OEM Flag, an integer between 0x0000 and 0xffff\n"
> +               "\t-h, --help        print a help message\n",
>                 tool_name);
>  }
>
> @@ -336,16 +338,18 @@ static int create_auth_data(struct auth_context *ctx)
>   * @path:      Path to a capsule file
>   * @signature: Signature data
>   * @sig_size:  Size of signature data
> + * @index:     The payload index the signature belongs to
>   *
>   * Signature data pointed to by @signature will be saved into
> - * a file whose file name is @path with ".p7" suffix.
> + * a file whose file name is @path with "_<index>.p7" suffix.
> + * If index is negative the suffix is ".p7" (for backwards compatibility).
>   *
>   * Return:
>   * * 0  - on success
>   * * -1 - on failure
>   */
>  static int dump_signature(const char *path, const uint8_t *signature,
> -                         size_t sig_size)
> +                         size_t sig_size, int index)
>  {
>         char *sig_path;
>         FILE *f;
> @@ -356,7 +360,11 @@ static int dump_signature(const char *path, const uint8_t *signature,
>         if (!sig_path)
>                 return ret;
>
> -       sprintf(sig_path, "%s.p7", path);
> +       if (index < 0)
> +               sprintf(sig_path, "%s.p7", path);
> +       else
> +               sprintf(sig_path, "%s_%d.p7", path, index);
> +
>         f = fopen(sig_path, "w");
>         if (!f)
>                 goto err;
> @@ -386,14 +394,15 @@ static void free_sig_data(struct auth_context *ctx)
>  /**
>   * 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
> + * @bins:      Paths to firmware binaries to encapsulate, an array
> + * @guids:     GUIDs of related FMP drivers, an array
> + * @indices:   Index numbers in capsule, an array
>   * @instance:  Instance number in capsule
>   * @mcount:    Monotonic count in authentication information
> + * @size:      Size of the arrays
>   * @private_file:      Path to a private key file
>   * @cert_file: Path to a certificate file
> - * @oemflags:  Capsule OEM Flags, bits 0-15
> + * @oemflags:  Capsule OEM Flags, bits 0-15
>   *
>   * This function actually does the job of creating an uefi capsule file.
>   * All the arguments must be supplied.
> @@ -404,78 +413,87 @@ static void free_sig_data(struct auth_context *ctx)
>   * * 0  - on success
>   * * -1 - on failure
>   */
> -static int create_fwbin(const char *path, const char *bin,
> -                       const efi_guid_t *guid, unsigned long index,
> -                       unsigned long instance,
> -                       const struct fmp_payload_header_params *fmp_ph_params,
> -                       uint64_t mcount,
> -                       const char *privkey_file, const char *cert_file,
> -                       uint16_t oemflags)
> +static int create_fwbin(const char *path, const char **bins,
> +                       const efi_guid_t *guids, const unsigned long *indices,
> +                       const unsigned long *instances,
> +                       const unsigned long *fw_versions, const unsigned long *mcounts,
> +                       int size, const char *privkey_file,
> +                       const char *cert_file, uint16_t oemflags)
>  {
>         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;
> +       struct efi_firmware_management_capsule_image_header images[size];
> +       struct auth_context auth_contexts[size];
>         FILE *f;
> -       uint8_t *data, *new_data, *buf;
> -       off_t bin_size;
> -       uint64_t offset;
> +       uint8_t *data_list[size], *new_data_list[size], *buf_list[size];
> +       off_t bin_sizes[size];
> +       uint64_t offsets[size];
>         int ret;
> -       struct fmp_payload_header payload_header;
> +       struct fmp_payload_header payload_headers[size];
>
>  #ifdef DEBUG
>         fprintf(stderr, "For output: %s\n", path);
> -       fprintf(stderr, "\tbin: %s\n\ttype: %pUl\n", bin, guid);
> -       fprintf(stderr, "\tindex: %lu\n\tinstance: %lu\n", index, instance);
> +       for (int i = 0; i < size; i++) {
> +               fprintf(stderr, "\tpayload no: %d\n", i);
> +               fprintf(stderr, "\t\tbin: %s\n\t\ttype: %pUl\n", bins[i], guids[i]);
> +               fprintf(stderr, "\t\tindex: %lu\n\t\tinstance: %lu\n", indices[i], instances[i]);
> +       }
>  #endif
> -       auth_context.sig_size = 0;
>         f = NULL;
> -       data = NULL;
> -       new_data = NULL;
>         ret = -1;
>
> -       /*
> -        * read a firmware binary
> -        */
> -       if (read_bin_file(bin, &data, &bin_size))
> -               goto err;
> +       for (int i = 0; i < size; i++) {
> +               auth_contexts[i].sig_size = 0;
> +               data_list[i] = NULL;
> +               new_data_list[i] = NULL;
> +       }
>
> -       buf = data;
> +       for (int i = 0; i < size; i++) {
> +               int dump_index = (size == 1) ? -1 : i;
>
> -       /* insert fmp payload header right before the payload */
> -       if (fmp_ph_params->have_header) {
> -               new_data = malloc(bin_size + sizeof(payload_header));
> -               if (!new_data)
> +               /*
> +                * read a firmware binary
> +                */
> +               if (read_bin_file(bins[i], &data_list[i], &bin_sizes[i]))
>                         goto err;
>
> -               payload_header.signature = FMP_PAYLOAD_HDR_SIGNATURE;
> -               payload_header.header_size = sizeof(payload_header);
> -               payload_header.fw_version = fmp_ph_params->fw_version;
> -               payload_header.lowest_supported_version = 0; /* not used */
> -               memcpy(new_data, &payload_header, sizeof(payload_header));
> -               memcpy(new_data + sizeof(payload_header), data, bin_size);
> -               buf = new_data;
> -               bin_size += sizeof(payload_header);
> -       }
> -
> -       /* 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 = buf;
> -               auth_context.image_size = bin_size;
> -
> -               if (create_auth_data(&auth_context)) {
> -                       fprintf(stderr, "Signing firmware image failed\n");
> -                       goto err;
> +               buf_list[i] = data_list[i];
> +               /* insert fmp payload header right before the payload */
> +               if (fw_versions) {
> +                       new_data_list[i] = malloc(bin_sizes[i] + sizeof(payload_headers[i]));
> +                       if (!new_data_list[i])
> +                               goto err;
> +
> +                       payload_headers[i].signature = FMP_PAYLOAD_HDR_SIGNATURE;
> +                       payload_headers[i].header_size = sizeof(payload_headers[i]);
> +                       payload_headers[i].fw_version = fw_versions[i];
> +                       payload_headers[i].lowest_supported_version = 0; /* not used */
> +                       memcpy(new_data_list[i], (payload_headers + i), sizeof(payload_headers[i]));
> +                       memcpy(new_data_list[i] + sizeof(payload_headers[i]), data_list[i],
> +                              bin_sizes[i]);
> +                       buf_list[i] = new_data_list[i];
> +                       bin_sizes[i] += sizeof(payload_headers[i]);
>                 }
>
> -               if (dump_sig &&
> -                   dump_signature(path, auth_context.sig_data,
> -                                  auth_context.sig_size)) {
> -                       fprintf(stderr, "Creating signature file failed\n");
> -                       goto err;
> +               /* calculate signature to determine its size */
> +               if (privkey_file && cert_file) {
> +                       auth_contexts[i].key_file = privkey_file;
> +                       auth_contexts[i].cert_file = cert_file;
> +                       auth_contexts[i].auth.monotonic_count = mcounts[i];
> +                       auth_contexts[i].image_data = buf_list[i];
> +                       auth_contexts[i].image_size = bin_sizes[i];
> +
> +                       if (create_auth_data(&auth_contexts[i])) {
> +                               fprintf(stderr, "Signing firmware image failed\n");
> +                               goto err;
> +                       }
> +
> +                       if (dump_sig &&
> +                           dump_signature(path, auth_contexts[i].sig_data,
> +                                          auth_contexts[i].sig_size, dump_index)) {
> +                               fprintf(stderr, "Creating signature file failed\n");
> +                               goto err;
> +                       }
>                 }
>         }
>
> @@ -498,81 +516,87 @@ static int create_fwbin(const char *path, const char *bin,
>         if (oemflags)
>                 header.flags |= oemflags;
>         header.capsule_image_size = sizeof(header)
> -                                       + sizeof(capsule) + sizeof(uint64_t)
> -                                       + sizeof(image)
> -                                       + bin_size;
> -       if (auth_context.sig_size)
> -               header.capsule_image_size += sizeof(auth_context.auth)
> -                               + auth_context.sig_size;
> +                                       + sizeof(capsule)
> +                                       + size * sizeof(uint64_t); /* size of item_offset_list */
> +       for (int i = 0; i < size; i++) {
> +               offsets[i] = header.capsule_image_size - sizeof(header);
> +               header.capsule_image_size += sizeof(images[i])
> +                                       + bin_sizes[i];
> +               if (auth_contexts[i].sig_size)
> +                       header.capsule_image_size += sizeof(auth_contexts[i].auth)
> +                                       + auth_contexts[i].sig_size;
> +       }
>         if (write_capsule_file(f, &header, sizeof(header),
>                                "Capsule header"))
>                 goto err;
>
>         /*
>          * firmware capsule header
> -        * This capsule has only one firmware capsule image.
>          */
>         capsule.version = 0x00000001;
>         capsule.embedded_driver_count = 0;
> -       capsule.payload_item_count = 1;
> +       capsule.payload_item_count = size;
>         if (write_capsule_file(f, &capsule, sizeof(capsule),
>                                "Firmware capsule header"))
>                 goto err;
>
> -       offset = sizeof(capsule) + sizeof(uint64_t);
> -       if (write_capsule_file(f, &offset, sizeof(offset),
> -                              "Offset to capsule image"))
> +       if (write_capsule_file(f, &offsets, size * sizeof(uint64_t),
> +                              "Offsets to capsule images"))
>                 goto err;
>
> -       /*
> -        * firmware capsule image header
> -        */
> -       image.version = 0x00000003;
> -       memcpy(&image.update_image_type_id, guid, sizeof(*guid));
> -       image.update_image_index = index;
> -       image.reserved[0] = 0;
> -       image.reserved[1] = 0;
> -       image.reserved[2] = 0;
> -       image.update_image_size = bin_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;
> -       if (write_capsule_file(f, &image, sizeof(image),
> -                              "Firmware capsule image header"))
> -               goto err;
> -
> -       /*
> -        * signature
> -        */
> -       if (auth_context.sig_size) {
> -               if (write_capsule_file(f, &auth_context.auth,
> -                                      sizeof(auth_context.auth),
> -                                      "Authentication header"))
> +       for (int i = 0; i < size; i++) {
> +               /*
> +                * firmware capsule image header
> +                */
> +               images[i].version = 0x00000003;
> +               memcpy(&images[i].update_image_type_id, &guids[i], sizeof(guids[i]));
> +               images[i].update_image_index = indices[i];
> +               images[i].reserved[0] = 0;
> +               images[i].reserved[1] = 0;
> +               images[i].reserved[2] = 0;
> +               images[i].update_image_size = bin_sizes[i];
> +               if (auth_contexts[i].sig_size)
> +                       images[i].update_image_size += sizeof(auth_contexts[i].auth)
> +                                       + auth_contexts[i].sig_size;
> +               images[i].update_vendor_code_size = 0; /* none */
> +               images[i].update_hardware_instance = instances[i];
> +               images[i].image_capsule_support = 0;
> +               if (auth_contexts[i].sig_size)
> +                       images[i].image_capsule_support |= CAPSULE_SUPPORT_AUTHENTICATION;
> +               if (write_capsule_file(f, &images[i], sizeof(images[i]),
> +                                      "Firmware capsule image header"))
>                         goto err;
>
> -               if (write_capsule_file(f, auth_context.sig_data,
> -                                      auth_context.sig_size, "Signature"))
> +               /*
> +                * signature
> +                */
> +               if (auth_contexts[i].sig_size) {
> +                       if (write_capsule_file(f, &auth_contexts[i].auth,
> +                                              sizeof(auth_contexts[i].auth),
> +                                              "Authentication header"))
> +                               goto err;
> +
> +                       if (write_capsule_file(f, auth_contexts[i].sig_data,
> +                                              auth_contexts[i].sig_size, "Signature"))
> +                               goto err;
> +               }
> +
> +               /*
> +                * firmware binary
> +                */
> +               if (write_capsule_file(f, buf_list[i], bin_sizes[i], "Firmware binary"))
>                         goto err;
>         }
>
> -       /*
> -        * firmware binary
> -        */
> -       if (write_capsule_file(f, buf, bin_size, "Firmware binary"))
> -               goto err;
> -
>         ret = 0;
>  err:
>         if (f)
>                 fclose(f);
> -       free_sig_data(&auth_context);
> -       free(data);
> -       free(new_data);
> +       for (int i = 0; i < size; i++) {
> +               free_sig_data(&auth_contexts[i]);
> +               free(data_list[i]);
> +               free(new_data_list[i]);
> +       }
>
>         return ret;
>  }
> @@ -652,6 +676,228 @@ err:
>         return ret;
>  }
>
> +/**
> + * count_items - count number of items in list
> + * @list:      Pointer to a string
> + * @separator: Separator used to separate list items
> + *
> + * Count the number of items in a list. The list items
> + * are separated by a separator character inside the string.
> + * Trailing white spaces are not allowed except if it is the separator.
> + *
> + * Return:
> + * The item count.
> + */
> +int count_items(const char *list, char separator)
> +{
> +       const char *c;
> +       int count = 0;
> +
> +       if (!*list)
> +               return 0;
> +
> +       for (c = list; *c; c++) {
> +               if (*c == separator)
> +                       count++;
> +       }
> +       /* correct count if no trailing separator present */
> +       if (*(c - 1) != separator)
> +               count++;
> +
> +       return count;
> +}
> +
> +/**
> + * update_itemcount - update item count
> + * @count:     The count to be updated
> + * @list:      The item list
> + * @separator: List separator
> + *
> + * Initialize the count if it is uninitialized (negative value).
> + * Check that the list contains at least one item.
> + * Check if an already initialized count is consistent with the list count.
> + *
> + * Return:
> + * * 0 - on success
> + * * -1 - if a check fails
> + */
> +int update_itemcount(int *count, const char *list, char separator)
> +{
> +       int current_count = count_items(list, separator);
> +
> +       if (*count < 0)
> +               *count = current_count;
> +
> +       if (*count == 0 ||
> +           *count != current_count)
> +               return -1;
> +
> +       return 0;
> +}
> +
> +/**
> + * split_list - split list into elements
> + * @elements:  Pointer to string array
> + * @size:      The array size
> + * @list:      The item list
> + * @separator: List separator
> + *
> + * Split a comma-separated list into its elements.
> + *
> + * Return:
> + * * 0 - on success
> + * * -1 - on failure
> + */
> +int split_list(char **elements, int size, char *list, char separator)
> +{
> +       const char separator_str[] = {separator, '\0'};
> +       char *end;
> +
> +       for (int i = 0; i < size; i++) {
> +               elements[i] = strsep(&list, separator_str);
> +               if (!elements[i])
> +                       return -1;
> +       }
> +
> +       end = strsep(&list, separator_str);  /* NULL or empty string expected */
> +       if (end && *end)
> +               return -1;
> +
> +       return 0;
> +}
> +
> +/**
> + * alloc_array - allocate memory for array
> + * @count:     The number of elements
> + * @obj_size:  The size of a single element
> + * @name:      The name of the array
> + *
> + * This is a wrapper for malloc which prints an error
> + * message on failure.
> + *
> + *  Return:
> + * * Pointer to the allocated memory on success
> + * * NULL on failure
> + */
> +void *alloc_array(unsigned int count, size_t obj_size, const char *name)
> +{
> +       void *array;
> +
> +       array = malloc(count * obj_size);
> +       if (!array)
> +               fprintf(stderr, "Could not allocate memory for %s\n", name);
> +
> +       return array;
> +}
> +
> +/**
> + * init_guids - populate guid array
> + * @elements:  String array of elements to be converted
> + * @size:      The array size
> + * @name:      The name of the array
> + *
> + * Allocate and populate an array of guid structs. The list contains the UUIDs
> + * to convert and store in the array. Upon failure an error message is
> + * printed.
> + *
> + * Return:
> + * * The initialized GUID array on success
> + * * NULL on failure
> + */
> +efi_guid_t *init_guids(const char **elements, unsigned int size,
> +                      const char *name)
> +{
> +       efi_guid_t *guids;
> +
> +       guids = alloc_array(size, sizeof(efi_guid_t), name);
> +       if (!guids)
> +               return NULL;
> +
> +       for (int i = 0; i < size; i++) {
> +               if (uuid_parse(elements[i], (unsigned char *)(guids + i))) {
> +                       fprintf(stderr, "Wrong %s format\n", name);
> +                       free(guids);
> +                       return NULL;
> +               }
> +               convert_uuid_to_guid((unsigned char *)(guids + i));
> +       }
> +
> +       return guids;
> +}
> +
> +/**
> + * init_uls - populate unsigned long array
> + * @elements:  String array of elements to be converted
> + * @size:      The array size
> + * @name:      The name of the array
> + *
> + * Allocate and populate an array of unsgined longs. Upon failure an
> + * error message is printed.
> + *
> + * Return:
> + * * The initialized array on success
> + * * NULL on failure
> + */
> +unsigned long *init_uls(const char **elements, unsigned int size,
> +                       const char *name)
> +{
> +       unsigned long *array;
> +
> +       array = alloc_array(size, sizeof(unsigned long), name);
> +       if (!array)
> +               return NULL;
> +       for (int i = 0; i < size; i++)
> +               array[i] = strtoul(elements[i], NULL, 0);
> +
> +       return array;
> +}
> +
> +/**
> + * init_list - parse list and allocate elements
> + * @listcount: The list count to be checked and updated
> + * @list:      The list to be parsed
> + * @separator: The list separator
> + * @name:      The name of the list
> + * @multiple_times:    List encountered multiple times
> + *
> + * Routine for command line argument lists.
> + * Parse the string list and count the list elements.
> + * Initialize the listcount if it is uninitialized (negative value).
> + * Check that the list contains at least one item.
> + * Check if an already initialized count is consistent with the list count.
> + * Allocate the string array and populate it with the list elements.
> + * The array should be freed in the calling function.
> + * Upon failure an error message is printed and the program exits.
> + *
> + *  Return:
> + * * The initialized array on success
> + * * NULL on failure
> + */
> +char **init_list(int *listcount, char *list, char separator,
> +                bool multiple_times, char *name)
> +{
> +       char **elements;
> +
> +       if (multiple_times) {
> +               fprintf(stderr, "%s specified multiple times\n", name);
> +               return NULL;
> +       }
> +       if (update_itemcount(listcount, list, separator)) {
> +               fprintf(stderr, "List count not consistent with previous or list not provided\n");
> +               return NULL;
> +       }
> +       elements = alloc_array(*listcount, sizeof(char *), name);
> +       if (!elements)
> +               return NULL;
> +       if (split_list(elements, *listcount, list, separator)) {
> +               fprintf(stderr, "Could not parse %s list\n", name);
> +               free(elements);
> +               return NULL;
> +       }
> +
> +       return elements;
> +}
> +
>  /**
>   * main - main entry function of mkeficapsule
>   * @argc:      Number of arguments
> @@ -666,24 +912,27 @@ err:
>   */
>  int main(int argc, char **argv)
>  {
> -       efi_guid_t *guid;
> -       unsigned char uuid_buf[16];
> -       unsigned long index, instance;
> -       uint64_t mcount;
> +       const char separator = ',';
> +       const efi_guid_t *guids; /* an array */
> +       const unsigned long *indices, *instances, *mcounts, *fw_versions; /* arrays */
>         unsigned long oemflags;
> +       const char **blob_paths, **elements;  /* string arrays */
>         const char *privkey_file, *cert_file;
> -       int c, idx;
> -       struct fmp_payload_header_params fmp_ph_params = { 0 };
> +       int listcount, c, idx;
>
> -       guid = NULL;
> -       index = 0;
> -       instance = 0;
> -       mcount = 0;
> +       guids = NULL;
> +       indices = NULL;
> +       instances = NULL;
> +       mcounts = NULL;
> +       oemflags = 0;
> +       blob_paths = NULL;
>         privkey_file = NULL;
>         cert_file = NULL;
> +       elements = NULL;
> +       listcount = -1;
> +       fw_versions = NULL;
>         dump_sig = 0;
>         capsule_type = CAPSULE_NORMAL_BLOB;
> -       oemflags = 0;
>         for (;;) {
>                 c = getopt_long(argc, argv, opts_short, options, &idx);
>                 if (c == -1)
> @@ -691,27 +940,62 @@ int main(int argc, char **argv)
>
>                 switch (c) {
>                 case 'g':
> -                       if (guid) {
> -                               fprintf(stderr,
> -                                       "Image type already specified\n");
> +                       elements = (const char **)init_list(&listcount, optarg, separator, !!guids,
> +                                                           "GUID");
> +                       if (!elements)
>                                 exit(EXIT_FAILURE);
> -                       }
> -                       if (uuid_parse(optarg, uuid_buf)) {
> -                               fprintf(stderr, "Wrong guid format\n");
> +
> +                       guids = init_guids(elements, listcount, "GUID");
> +                       if (!guids)
>                                 exit(EXIT_FAILURE);
> -                       }
> -                       convert_uuid_to_guid(uuid_buf);
> -                       guid = (efi_guid_t *)uuid_buf;
> +
> +                       free(elements);
> +                       elements = NULL;
>                         break;
>                 case 'i':
> -                       index = strtoul(optarg, NULL, 0);
> +                       elements = (const char **)init_list(&listcount, optarg, separator,
> +                                                           !!indices, "index");
> +                       if (!elements)
> +                               exit(EXIT_FAILURE);
> +
> +                       indices = init_uls(elements, listcount, "index");
> +                       if (!indices)
> +                               exit(EXIT_FAILURE);
> +
> +                       free(elements);
> +                       elements = NULL;
> +                       break;
> +               case 'b':
> +                       blob_paths = (const char **)init_list(&listcount, optarg, separator,
> +                                                             !!blob_paths, "blob path");
> +                       if (!blob_paths)
> +                               exit(EXIT_FAILURE);
>                         break;
>                 case 'I':
> -                       instance = strtoul(optarg, NULL, 0);
> +                       elements = (const char **)init_list(&listcount, optarg, separator,
> +                                                           !!instances, "instance");
> +                       if (!elements)
> +                               exit(EXIT_FAILURE);
> +
> +                       instances = init_uls(elements, listcount, "instance");
> +                       if (!instances)
> +                               exit(EXIT_FAILURE);
> +
> +                       free(elements);
> +                       elements = NULL;
>                         break;
>                 case 'v':
> -                       fmp_ph_params.fw_version = strtoul(optarg, NULL, 0);
> -                       fmp_ph_params.have_header = true;
> +                       elements = (const char **)init_list(&listcount, optarg, separator,
> +                                                           !!fw_versions, "firmware version");
> +                       if (!elements)
> +                               exit(EXIT_FAILURE);
> +
> +                       fw_versions = init_uls(elements, listcount, "firmware version");
> +                       if (!fw_versions)
> +                               exit(EXIT_FAILURE);
> +
> +                       free(elements);
> +                       elements = NULL;
>                         break;
>                 case 'p':
>                         if (privkey_file) {
> @@ -730,7 +1014,17 @@ int main(int argc, char **argv)
>                         cert_file = optarg;
>                         break;
>                 case 'm':
> -                       mcount = strtoul(optarg, NULL, 0);
> +                       elements = (const char **)init_list(&listcount, optarg, separator,
> +                                                           !!mcounts, "monotonic count");
> +                       if (!elements)
> +                               exit(EXIT_FAILURE);
> +
> +                       mcounts = init_uls(elements, listcount, "monotonic count");
> +                       if (!mcounts)
> +                               exit(EXIT_FAILURE);
> +
> +                       free(elements);
> +                       elements = NULL;
>                         break;
>                 case 'd':
>                         dump_sig = 1;
> @@ -767,26 +1061,46 @@ int main(int argc, char **argv)
>
>         /* check necessary parameters */
>         if ((capsule_type == CAPSULE_NORMAL_BLOB &&
> -           ((argc != optind + 2) || !guid ||
> -            ((privkey_file && !cert_file) ||
> -             (!privkey_file && cert_file)))) ||
> +            (!((argc != optind + 2) ^ !(blob_paths && argc == optind + 1)) || !guids ||
> +             ((privkey_file && !cert_file) ||
> +              (!privkey_file && cert_file)))) ||
>             (capsule_type != CAPSULE_NORMAL_BLOB &&
> -           ((argc != optind + 1) ||
> -            ((capsule_type == CAPSULE_ACCEPT) && !guid) ||
> -            ((capsule_type == CAPSULE_REVERT) && guid)))) {
> +            ((argc != optind + 1) ||
> +             ((capsule_type == CAPSULE_ACCEPT) && !guids) ||
> +             ((capsule_type == CAPSULE_ACCEPT) && listcount != 1) ||
> +             ((capsule_type == CAPSULE_REVERT) && guids)))) {
>                 print_usage();
>                 exit(EXIT_FAILURE);
>         }
>
> +       /* populate blob_paths if image blob was provided as positional argument */
> +       if (capsule_type == CAPSULE_NORMAL_BLOB && !blob_paths) {
> +               blob_paths = malloc(sizeof(char *));
> +               if (!blob_paths) {
> +                       fprintf(stderr, "Could not allocate memory for blob paths\n");
> +                       exit(EXIT_FAILURE);
> +               }
> +               *blob_paths = argv[argc - 2];
> +       }
> +
> +       /* populate arrays with zeros if they are not provided */
> +       if (!indices)
> +               indices = calloc(listcount, sizeof(unsigned long));
> +       if (!instances)
> +               instances = calloc(listcount, sizeof(unsigned long));
> +       if (!mcounts)
> +               mcounts = calloc(listcount, sizeof(uint64_t));
> +
>         if (capsule_type != CAPSULE_NORMAL_BLOB) {
> -               if (create_empty_capsule(argv[argc - 1], guid,
> +               if (create_empty_capsule(argv[argc - 1], guids,
>                                          capsule_type == CAPSULE_ACCEPT) < 0) {
>                         fprintf(stderr, "Creating empty capsule failed\n");
>                         exit(EXIT_FAILURE);
>                 }
> -       } else  if (create_fwbin(argv[argc - 1], argv[argc - 2], guid,
> -                                index, instance, &fmp_ph_params, mcount, privkey_file,
> -                                cert_file, (uint16_t)oemflags) < 0) {
> +       } else if (create_fwbin(argv[argc - 1], blob_paths, guids,
> +                               indices, instances, fw_versions,
> +                               mcounts, listcount, privkey_file,
> +                               cert_file, (uint16_t)oemflags) < 0) {
>                 fprintf(stderr, "Creating firmware capsule failed\n");
>                 exit(EXIT_FAILURE);
>         }
> --
> 2.30.2
>


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