5 Commits

Author SHA1 Message Date
b47828014e Fix style issues in elfpatch.c 2023-01-06 20:24:12 +01:00
2c7ce64722 Fix style issues in crc.c 2023-01-06 20:17:14 +01:00
dc85955859 Fix style issues in main.c 2023-01-06 20:15:44 +01:00
5ec8d8d90b Fix style issues in named_crcs.c 2023-01-06 20:09:55 +01:00
e33c48618b Fix style in xml.c 2023-01-06 20:07:52 +01:00
5 changed files with 54 additions and 63 deletions

View File

@@ -56,7 +56,8 @@ static void internal_push_byte(struct crc_calc *crc, const uint8_t *data, size_t
crc_val = crc->crc_val; crc_val = crc->crc_val;
for (i = 0; i < len; i++, data++) { for (i = 0; i < len; i++, data++) {
crc_val = ((crc_val << 8) & crc->crc_mask) ^ crc->table[((crc_val >> (crc->crc_length-8u)) & 0xff) ^ *data]; crc_val = ((crc_val << 8) & crc->crc_mask) ^
crc->table[((crc_val >> (crc->crc_length-8u)) & 0xff) ^ *data];
} }
crc->crc_val = crc_val; crc->crc_val = crc_val;

View File

@@ -55,16 +55,16 @@ struct elfpatch {
#define is_elfpatch_struct(x) ((x) && (x)->magic == (ELFPATCH_MAGIC)) #define is_elfpatch_struct(x) ((x) && (x)->magic == (ELFPATCH_MAGIC))
#define ret_if_ep_err(ep) do { \ #define ret_if_ep_err(ep) do { \
if (!is_elfpatch_struct((ep))) { \ if (!is_elfpatch_struct((ep))) { \
return; \ return; \
} \ } \
} while(0) } while (0)
#define ret_val_if_ep_err(ep, val) do { \ #define ret_val_if_ep_err(ep, val) do { \
if (!is_elfpatch_struct((ep))) { \ if (!is_elfpatch_struct((ep))) { \
return (val); \ return val; \
} \ } \
} while(0) } while (0)
/** /**
* @brief Convert a series of 4 bytes into a uint32_t dpending on endianess * @brief Convert a series of 4 bytes into a uint32_t dpending on endianess
@@ -197,7 +197,7 @@ static SlList *elf_patch_get_sections(elfpatch_handle_t *ep)
sl_list_free_full(ret, (void (*)(void *))free_elf_section_element); sl_list_free_full(ret, (void (*)(void *))free_elf_section_element);
ep->sections = NULL; ep->sections = NULL;
if (elf_getshdrstrndx (ep->elf , &shstrndx) != 0) { if (elf_getshdrstrndx(ep->elf, &shstrndx) != 0) {
print_err("ELF error: %s\n", elf_errmsg(-1)); print_err("ELF error: %s\n", elf_errmsg(-1));
goto ret_free_section_list; goto ret_free_section_list;
} }
@@ -218,9 +218,10 @@ static SlList *elf_patch_get_sections(elfpatch_handle_t *ep)
sec->lma = (uint64_t)sec->section_header.sh_addr; sec->lma = (uint64_t)sec->section_header.sh_addr;
name = elf_strptr(ep->elf, shstrndx, sec->section_header.sh_name); name = elf_strptr(ep->elf, shstrndx, sec->section_header.sh_name);
if (name) {
if (name)
sec->name = strdup(name); sec->name = strdup(name);
}
ret = sl_list_append(ret, sec); ret = sl_list_append(ret, sec);
} }
@@ -431,15 +432,13 @@ elfpatch_handle_t *elf_patch_open(const char *path, bool readonly, bool expect_l
switch (ident[5]) { switch (ident[5]) {
case 1: case 1:
print_debug("ELF Endianess: little\n"); print_debug("ELF Endianess: little\n");
if (!expect_little_endian) { if (!expect_little_endian)
print_err("Big endian format expected. File is little endian. Double check settings!\n"); print_err("Big endian format expected. File is little endian. Double check settings!\n");
}
break; break;
case 2: case 2:
print_debug("ELF Endianess: big\n"); print_debug("ELF Endianess: big\n");
if (expect_little_endian) { if (expect_little_endian)
print_err("Little endian format expected. File is big endian. Double check settings!\n"); print_err("Little endian format expected. File is big endian. Double check settings!\n");
}
break; break;
default: default:
print_err("Cannot determine endianess of ELF file. EI_DATA is: %d\n", ident[5]); print_err("Cannot determine endianess of ELF file. EI_DATA is: %d\n", ident[5]);
@@ -454,9 +453,8 @@ close_elf:
ep->elf = NULL; ep->elf = NULL;
} }
close_fd: close_fd:
if (ep->fd > 0) { if (ep->fd > 0)
close(ep->fd); close(ep->fd);
}
free_struct: free_struct:
free(ep); free(ep);
ep = NULL; ep = NULL;
@@ -561,14 +559,12 @@ int elf_patch_compute_crc_over_section(elfpatch_handle_t *ep, const char *sectio
section, padding_count); section, padding_count);
} }
for (idx = 0; idx < data->d_size; idx++) { for (idx = 0; idx < data->d_size; idx++)
crc_push_byte(crc, ((char *)data->d_buf)[translate_index(idx, granularity, little_endian)]); crc_push_byte(crc, ((char *)data->d_buf)[translate_index(idx, granularity, little_endian)]);
}
/* Pad with zeroes */ /* Pad with zeroes */
for (idx = 0; idx < padding_count; idx++) { for (idx = 0; idx < padding_count; idx++)
crc_push_byte(crc, 0x00); crc_push_byte(crc, 0x00);
}
} }
return 0; return 0;
@@ -711,8 +707,8 @@ int elf_patch_write_crcs_to_section(elfpatch_handle_t *ep, const char *output_se
print_debug("Single CRC requires %u bytes.\n", (unsigned int)crc_size_bytes); print_debug("Single CRC requires %u bytes.\n", (unsigned int)crc_size_bytes);
needed_space = calculate_needed_space_for_crcs(format, crc_data->elf_bits, check_start_magic, check_end_magic, crc_size_bytes, needed_space = calculate_needed_space_for_crcs(format, crc_data->elf_bits, check_start_magic,
crc_count); check_end_magic, crc_size_bytes, crc_count);
print_debug("Required space for %zu CRCs%s: %zu (available: %zu)\n", print_debug("Required space for %zu CRCs%s: %zu (available: %zu)\n",
crc_count, crc_count,
@@ -782,11 +778,10 @@ int elf_patch_write_crcs_to_section(elfpatch_handle_t *ep, const char *output_se
crc_64bit.length = 0ull; crc_64bit.length = 0ull;
crc_64bit.start_address = 0ull; crc_64bit.start_address = 0ull;
if (crc_data->elf_bits == 32) { if (crc_data->elf_bits == 32)
memcpy(sec_bytes, &crc_32bit, sizeof(crc_32bit)); memcpy(sec_bytes, &crc_32bit, sizeof(crc_32bit));
} else { else
memcpy(sec_bytes, &crc_64bit, sizeof(crc_64bit)); memcpy(sec_bytes, &crc_64bit, sizeof(crc_64bit));
}
} }
/* Flag section data as invalid to trigger rewrite. /* Flag section data as invalid to trigger rewrite.
@@ -808,9 +803,8 @@ void elf_patch_close_and_free(elfpatch_handle_t *ep)
if (ep->readonly) { if (ep->readonly) {
print_debug("DRY RUN: File will not be updated\n"); print_debug("DRY RUN: File will not be updated\n");
} else { } else {
if (elf_update(ep->elf, ELF_C_WRITE) < 0) { if (elf_update(ep->elf, ELF_C_WRITE) < 0)
print_err("Error writing ELF file: %s\n", elf_errmsg(-1)); print_err("Error writing ELF file: %s\n", elf_errmsg(-1));
}
} }
} }

View File

@@ -108,11 +108,11 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state)
/* Polyniomial */ /* Polyniomial */
args->crc.polynomial = strtoull(arg, &endptr, 0); args->crc.polynomial = strtoull(arg, &endptr, 0);
if (endptr == arg) { if (endptr == arg) {
if ((looked_up_crc = lookup_named_crc(arg))) { looked_up_crc = lookup_named_crc(arg);
if (looked_up_crc)
memcpy(&args->crc, &looked_up_crc->settings, sizeof(struct crc_settings)); memcpy(&args->crc, &looked_up_crc->settings, sizeof(struct crc_settings));
} else { else
argp_error(state, "Error parsing polynomial: %s\n", arg); argp_error(state, "Error parsing polynomial: %s\n", arg);
}
} }
break; break;
case 'l': case 'l':
@@ -261,28 +261,22 @@ static void print_verbose_start_info(const struct command_line_options *cmd_opts
print_debug("CRC length: %d\n", crc_len_from_poly(cmd_opts->crc.polynomial)); print_debug("CRC length: %d\n", crc_len_from_poly(cmd_opts->crc.polynomial));
} }
if (cmd_opts->elf_path) { if (cmd_opts->elf_path)
print_debug("ELF file: %s\n", cmd_opts->elf_path); print_debug("ELF file: %s\n", cmd_opts->elf_path);
}
if (cmd_opts->output_section) { if (cmd_opts->output_section)
print_debug("Output section: %s\n", cmd_opts->output_section); print_debug("Output section: %s\n", cmd_opts->output_section);
}
if (cmd_opts->export_xml) { if (cmd_opts->export_xml)
print_debug("Export CRCs to '%s'\n", cmd_opts->export_xml); print_debug("Export CRCs to '%s'\n", cmd_opts->export_xml);
}
if (cmd_opts->import_xml) { if (cmd_opts->import_xml)
print_debug("Import CRCs from '%s'\n", cmd_opts->import_xml); print_debug("Import CRCs from '%s'\n", cmd_opts->import_xml);
}
if (cmd_opts->section_list) { if (cmd_opts->section_list) {
for (list_iter = cmd_opts->section_list, i = 1; list_iter; list_iter = sl_list_next(list_iter), i++) { for (list_iter = cmd_opts->section_list, i = 1; list_iter; list_iter = sl_list_next(list_iter), i++)
print_debug("Input section [%d]: \"%s\"\n", i, (const char *)list_iter->data); print_debug("Input section [%d]: \"%s\"\n", i, (const char *)list_iter->data);
}
} }
} }
static void free_cmd_args(struct command_line_options *opts) static void free_cmd_args(struct command_line_options *opts)
@@ -322,6 +316,7 @@ static int check_all_sections_present(elfpatch_handle_t *ep, SlList *list)
sec_name = (const char *)iter->data; sec_name = (const char *)iter->data;
if (!sec_name) if (!sec_name)
continue; continue;
if (elf_patch_check_for_section(ep, sec_name)) { if (elf_patch_check_for_section(ep, sec_name)) {
print_err("Cannot find section '%s'\n", sec_name); print_err("Cannot find section '%s'\n", sec_name);
ret = -2; ret = -2;
@@ -340,7 +335,8 @@ static int check_all_sections_present(elfpatch_handle_t *ep, SlList *list)
* @param opts Command line options. Used for CRC generation * @param opts Command line options. Used for CRC generation
* @return CRC data * @return CRC data
*/ */
static struct crc_import_data *compute_crcs(elfpatch_handle_t *ep, SlList *list, const struct command_line_options *opts) static struct crc_import_data *compute_crcs(elfpatch_handle_t *ep, SlList *list,
const struct command_line_options *opts)
{ {
SlList *iter; SlList *iter;
const char *sec_name; const char *sec_name;
@@ -423,6 +419,7 @@ int main(int argc, char **argv)
prepare_default_opts(&cmd_opts); prepare_default_opts(&cmd_opts);
parse_cmdline_options(&argc, &argv, &cmd_opts); parse_cmdline_options(&argc, &argv, &cmd_opts);
if (cmd_opts.print_xsd) { if (cmd_opts.print_xsd) {
xml_print_xsd(); xml_print_xsd();
goto free_cmds; goto free_cmds;
@@ -430,6 +427,7 @@ int main(int argc, char **argv)
if (cmd_opts.verbose || cmd_opts.dry_run) if (cmd_opts.verbose || cmd_opts.dry_run)
reporting_enable_verbose(); reporting_enable_verbose();
print_verbose_start_info(&cmd_opts); print_verbose_start_info(&cmd_opts);
if (cmd_opts.list) { if (cmd_opts.list) {
@@ -448,13 +446,11 @@ int main(int argc, char **argv)
return -2; return -2;
} }
if (cmd_opts.use_vma && cmd_opts.format != FORMAT_STRUCT) { if (cmd_opts.use_vma && cmd_opts.format != FORMAT_STRUCT)
print_warn("--use-vma option only has an effect when exporting as struct output.\n"); print_warn("--use-vma option only has an effect when exporting as struct output.\n");
}
if (!cmd_opts.output_section && cmd_opts.export_xml == NULL) { if (!cmd_opts.output_section && cmd_opts.export_xml == NULL)
print_err("No output section / XML export specified. Will continue but not create any output\n"); print_err("No output section / XML export specified. Will continue but not create any output\n");
}
/* Do error printing if using a reversed polynomial. It is not implemented yet! */ /* Do error printing if using a reversed polynomial. It is not implemented yet! */
if (cmd_opts.crc.rev) { if (cmd_opts.crc.rev) {
@@ -481,13 +477,11 @@ int main(int argc, char **argv)
/* Compute CRCs over sections */ /* Compute CRCs over sections */
crc_data = compute_crcs(ep, cmd_opts.section_list, &cmd_opts); crc_data = compute_crcs(ep, cmd_opts.section_list, &cmd_opts);
if (!crc_data) { if (!crc_data)
goto ret_close_elf; goto ret_close_elf;
}
if (reporting_get_verbosity()) { if (reporting_get_verbosity())
print_crcs(crc_data); print_crcs(crc_data);
}
} else { } else {
crc_data = xml_import_from_file(cmd_opts.import_xml); crc_data = xml_import_from_file(cmd_opts.import_xml);
} }

View File

@@ -28,7 +28,7 @@
.xor = outxor, \ .xor = outxor, \
.start_value = init, \ .start_value = init, \
.rev = reverse \ .rev = reverse \
}} } }
const struct named_crc predefined_crc_table[] = { const struct named_crc predefined_crc_table[] = {
NAMED_CRC("crc-8", 0x107, false, 0x00, 0x00), NAMED_CRC("crc-8", 0x107, false, 0x00, 0x00),
@@ -70,7 +70,7 @@ const struct named_crc predefined_crc_table[] = {
NAMED_CRC("jamcrc", 0x104C11DB7, true, 0xFFFFFFFF, 0x00000000), NAMED_CRC("jamcrc", 0x104C11DB7, true, 0xFFFFFFFF, 0x00000000),
NAMED_CRC("xfer", 0x1000000AF, false, 0x00000000, 0x00000000), NAMED_CRC("xfer", 0x1000000AF, false, 0x00000000, 0x00000000),
/* SENTINEL */ /* SENTINEL */
{.name = NULL, .settings = {0, 0, 0, false}}, { .name = NULL, .settings = {0, 0, 0, false} },
}; };
const struct named_crc *reverse_lookup_named_crc(const struct crc_settings *settings) const struct named_crc *reverse_lookup_named_crc(const struct crc_settings *settings)

View File

@@ -30,9 +30,8 @@ int xml_write_crcs_to_file(const char *path, const struct crc_import_data *crc_d
const struct crc_entry *entry; const struct crc_entry *entry;
size_t index; size_t index;
if (!path || !crc_data) { if (!path || !crc_data)
return -1000; return -1000;
}
writer = xmlNewTextWriterFilename(path, 0); writer = xmlNewTextWriterFilename(path, 0);
if (!writer) { if (!writer) {
@@ -67,7 +66,9 @@ int xml_write_crcs_to_file(const char *path, const struct crc_import_data *crc_d
xmlTextWriterStartElement(writer, BAD_CAST "sections"); xmlTextWriterStartElement(writer, BAD_CAST "sections");
/* Output all section CRCs */ /* Output all section CRCs */
for (entry_iter = crc_data->crc_entries, index = 0u; entry_iter; entry_iter = sl_list_next(entry_iter), index++) { for (entry_iter = crc_data->crc_entries, index = 0u;
entry_iter;
entry_iter = sl_list_next(entry_iter), index++) {
entry = (const struct crc_entry *)entry_iter->data; entry = (const struct crc_entry *)entry_iter->data;
xmlTextWriterStartElement(writer, BAD_CAST "crc"); xmlTextWriterStartElement(writer, BAD_CAST "crc");
xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "name", "%s", entry->name); xmlTextWriterWriteFormatAttribute(writer, BAD_CAST "name", "%s", entry->name);
@@ -222,7 +223,8 @@ static int convert_number_string_to_uint(const char *data, uint64_t *output)
* @return 0 if successful * @return 0 if successful
* @return negative in case of an error * @return negative in case of an error
*/ */
static int get_uint64_from_xpath_content(const char *xpath, xmlXPathContextPtr xpath_ctx, uint64_t *output, bool required) static int get_uint64_from_xpath_content(const char *xpath, xmlXPathContextPtr xpath_ctx,
uint64_t *output, bool required)
{ {
const char *data; const char *data;
int ret = -1; int ret = -1;
@@ -245,7 +247,8 @@ static int get_uint64_from_xpath_content(const char *xpath, xmlXPathContextPtr x
* @return 0 if successful * @return 0 if successful
* @return negative in case of an error * @return negative in case of an error
*/ */
static int get_uint32_from_xpath_content(const char *xpath, xmlXPathContextPtr xpath_ctx, uint32_t *output, bool required) static int get_uint32_from_xpath_content(const char *xpath, xmlXPathContextPtr xpath_ctx,
uint32_t *output, bool required)
{ {
const char *data; const char *data;
uint64_t tmp; uint64_t tmp;
@@ -359,10 +362,10 @@ struct crc_import_data *xml_import_from_file(const char *path)
print_err("Error reading XML file: %s\n", path); print_err("Error reading XML file: %s\n", path);
goto ret_none; goto ret_none;
} }
root_node = xmlDocGetRootElement(doc); root_node = xmlDocGetRootElement(doc);
if (!root_node) { if (!root_node)
goto ret_close_doc; goto ret_close_doc;
}
/* Validate the document */ /* Validate the document */
if (!validate_xml_doc(doc)) { if (!validate_xml_doc(doc)) {
@@ -372,9 +375,8 @@ struct crc_import_data *xml_import_from_file(const char *path)
/* Get xpath context */ /* Get xpath context */
xpath_ctx = xmlXPathNewContext(doc); xpath_ctx = xmlXPathNewContext(doc);
if (!xpath_ctx) { if (!xpath_ctx)
goto ret_close_doc; goto ret_close_doc;
}
/* Get the version number and print error in case of incompatibility. Continue either way */ /* Get the version number and print error in case of incompatibility. Continue either way */
cptr = (char *)xmlGetProp(root_node, BAD_CAST "version"); cptr = (char *)xmlGetProp(root_node, BAD_CAST "version");