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author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-01-29 09:39:36 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-02-04 08:29:16 +0100 |
commit | 3b4db3851b9713dc4df515e560940c6426c38b00 (patch) | |
tree | 3b619df79c33128ea6840b7228fea9eadfd7012c /scripts/imx/imx.c | |
parent | 0b57bfb12f013c01980ecf3fa5c70b2366450d2c (diff) | |
download | barebox-3b4db3851b9713dc4df515e560940c6426c38b00.tar.gz barebox-3b4db3851b9713dc4df515e560940c6426c38b00.tar.xz |
scripts: imx: Create CSF files from imx config file
This is the first step to support creating signed images directly
with the imx-image tool. i.MX images must be signed using the Freescale
CST tool. CST needs informations already present in the imx-image tool,
so it's convenient to call CST directly from imx-image.
CST takes CSF files (Command Sequence Files) as input. This patch
supports generating CSF files from the imx-image configuration file.
This adds three new commands to the config file:
hab <str>: All options to the hab command are directly passed through to
the CSF.
hab_blocks: This generates the "Blocks =" line in the CSF. This is the
place where the CSF needs information which is contained in
the imx-image tool: The image size, the image filename and
the load address.
super_root_key <file>: For HABv3 the super root key hash is needed in
the i.MX flash header. This command is used to
specify the path to the super root key. Needed
for HABv3 only.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'scripts/imx/imx.c')
-rw-r--r-- | scripts/imx/imx.c | 108 |
1 files changed, 107 insertions, 1 deletions
diff --git a/scripts/imx/imx.c b/scripts/imx/imx.c index 0e260c45dc..6b397fc473 100644 --- a/scripts/imx/imx.c +++ b/scripts/imx/imx.c @@ -16,6 +16,7 @@ * */ +#define _GNU_SOURCE #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -25,7 +26,7 @@ #include "imx.h" -#define MAXARGS 5 +#define MAXARGS 32 static int parse_line(char *line, char *argv[]) { @@ -232,6 +233,102 @@ static int do_soc(struct config_data *data, int argc, char *argv[]) return -EINVAL; } +static int hab_add_str(struct config_data *data, const char *str) +{ + int len = strlen(str); + + if (data->csf_space < len) + return -ENOMEM; + + strcat(data->csf, str); + + data->csf_space -= len; + + return 0; +} + +static int do_hab(struct config_data *data, int argc, char *argv[]) +{ + int i, ret; + + if (!data->csf) { + data->csf_space = 0x10000; + + data->csf = malloc(data->csf_space + 1); + if (!data->csf) + return -ENOMEM; + } + + for (i = 1; i < argc; i++) { + ret = hab_add_str(data, argv[i]); + if (ret) + return ret; + + ret = hab_add_str(data, " "); + if (ret) + return ret; + } + + ret = hab_add_str(data, "\n"); + if (ret) + return ret; + + return 0; +} + +static int do_hab_blocks(struct config_data *data, int argc, char *argv[]) +{ + char *str; + int ret; + + if (!data->csf) + return -EINVAL; + + ret = asprintf(&str, "Blocks = 0x%08x 0 %d \"%s\"\n", + data->image_load_addr, + data->load_size, data->outfile); + if (ret < 0) + return -ENOMEM; + + ret = hab_add_str(data, str); + if (ret) + return ret; + + return 0; +} + +static int do_super_root_key(struct config_data *data, int argc, char *argv[]) +{ + int len; + char *srkfile; + + if (argc != 2) { + fprintf(stderr, "usage: super_root_key <keyfile>\n"); + return -EINVAL; + } + + if (data->cpu_type != 35 && data->cpu_type != 25) { + fprintf(stderr, "Warning: The super_root_key command is meaningless " + "on non HABv3 based SoCs\n"); + return 0; + } + + srkfile = argv[1]; + + if (*srkfile == '"') + srkfile++; + + data->srkfile = strdup(srkfile); + if (!data->srkfile) + return -ENOMEM; + + len = strlen(data->srkfile); + if (data->srkfile[len - 1] == '"') + data->srkfile[len - 1] = 0; + + return 0; +} + struct command cmds[] = { { .name = "wm", @@ -248,6 +345,15 @@ struct command cmds[] = { }, { .name = "soc", .parse = do_soc, + }, { + .name = "hab", + .parse = do_hab, + }, { + .name = "hab_blocks", + .parse = do_hab_blocks, + }, { + .name = "super_root_key", + .parse = do_super_root_key, }, }; |