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-rw-r--r--projects/cli-test/cli-test.c6
-rw-r--r--projects/hsm/Makefile1
-rw-r--r--projects/hsm/hsm.c97
-rw-r--r--projects/hsm/mgmt-keystore.c51
-rw-r--r--projects/hsm/mgmt-masterkey.c90
-rw-r--r--projects/libhal-test/main.c1
6 files changed, 189 insertions, 57 deletions
diff --git a/projects/cli-test/cli-test.c b/projects/cli-test/cli-test.c
index 82946fa..c0fe57e 100644
--- a/projects/cli-test/cli-test.c
+++ b/projects/cli-test/cli-test.c
@@ -88,3 +88,9 @@ void *hal_allocate_static_memory(const size_t size)
{
return NULL;
}
+
+int hal_free_static_memory(const void * const ptr)
+{
+ return 0;
+}
+
diff --git a/projects/hsm/Makefile b/projects/hsm/Makefile
index 3430e14..37c552d 100644
--- a/projects/hsm/Makefile
+++ b/projects/hsm/Makefile
@@ -25,7 +25,6 @@ LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
LDFLAGS += -Wl,--gc-sections
ifdef DO_PROFILING
-OBJS += $(TOPLEVEL)/memfunc.o
LDFLAGS += --specs=rdimon.specs -lc -lrdimon
endif
diff --git a/projects/hsm/hsm.c b/projects/hsm/hsm.c
index 64529f6..a34b1f7 100644
--- a/projects/hsm/hsm.c
+++ b/projects/hsm/hsm.c
@@ -86,27 +86,19 @@ static uint8_t busy_stack[BUSY_STACK_SIZE];
* 4096-byte block of an FPGA or bootloader image upload.
*/
#ifndef CLI_STACK_SIZE
-#define CLI_STACK_SIZE 8*1024
-#endif
-static uint8_t cli_stack[CLI_STACK_SIZE];
-
-#ifndef MAX_PKT_SIZE
-/* An arbitrary number, more or less driven by the 4096-bit RSA
- * keygen test.
- */
-#define MAX_PKT_SIZE 4096
+#define CLI_STACK_SIZE 16*1024
#endif
/* RPC buffers. For each active request, there will be two - input and output.
*/
typedef struct rpc_buffer_s {
size_t len;
- uint8_t buf[MAX_PKT_SIZE];
+ uint8_t buf[HAL_RPC_MAX_PKT_SIZE];
struct rpc_buffer_s *next; /* for ibuf queue linking */
} rpc_buffer_t;
/* RPC input (requst) buffers */
-static rpc_buffer_t ibufs[NUM_RPC_TASK];
+static rpc_buffer_t *ibufs;
/* ibuf queue structure */
typedef struct {
@@ -348,36 +340,73 @@ static void busy_task(void)
}
}
-/* Allocate memory from SDRAM1. There is only malloc, no free, so we don't
- * worry about fragmentation. */
-static uint8_t *sdram_malloc(size_t size)
+#include "stm-fpgacfg.h"
+#include "hashsig.h"
+
+static void hashsig_restart_task(void)
{
- /* end of variables declared with __attribute__((section(".sdram1"))) */
- extern uint8_t _esdram1 __asm ("_esdram1");
- /* end of SDRAM1 section */
- extern uint8_t __end_sdram1 __asm ("__end_sdram1");
+ /* wait for the fpga to configure itself on cold-boot */
+ while (fpgacfg_check_done() != CMSIS_HAL_OK)
+ task_yield();
+
+ /* reinitialize the hashsig key structures after a device restart */
+ hal_hashsig_ks_init();
+
+ /* done, convert this task to an RPC handler */
+ task_mod((char *)task_get_cookie(NULL), dispatch_task, NULL);
+}
- static uint8_t *sdram_heap = &_esdram1;
+/* end of variables declared with __attribute__((section(".sdram1"))) */
+extern uint8_t _esdram1 __asm ("_esdram1");
+/* end of SDRAM1 section */
+extern uint8_t __end_sdram1 __asm ("__end_sdram1");
+static uint8_t *sdram_heap = &_esdram1;
+
+/* Allocate memory from SDRAM1. */
+static uint8_t *sdram_malloc(size_t size)
+{
uint8_t *p = sdram_heap;
#define pad(n) (((n) + 3) & ~3)
size = pad(size);
- if (p + size > &__end_sdram1)
+ if (p + size + sizeof(uint32_t) > &__end_sdram1)
return NULL;
- sdram_heap += size;
+ *(uint32_t *)p = (uint32_t)size;
+ p += sizeof(uint32_t);
+
+ sdram_heap += size + sizeof(uint32_t);
return p;
}
-/* Implement static memory allocation for libhal over sdram_malloc().
- * Once again, there's only alloc, not free. */
+/* A very limited form of free(), which only frees memory if it's at the
+ * top of the heap.
+ */
+static hal_error_t sdram_free(uint8_t *ptr)
+{
+ uint8_t *p = ptr - sizeof(uint32_t);
+ uint32_t size = *(uint32_t *)p;
+ if (ptr + size == sdram_heap) {
+ sdram_heap = p;
+ return LIBHAL_OK;
+ }
+ else
+ return HAL_ERROR_FORBIDDEN;
+}
+/* Implement static memory allocation for libhal over sdram_malloc().
+ */
void *hal_allocate_static_memory(const size_t size)
{
return sdram_malloc(size);
}
+hal_error_t hal_free_static_memory(const void * const ptr)
+{
+ return sdram_free((uint8_t *)ptr);
+}
+
/* Critical section start/end - temporarily disable interrupts.
*/
void hal_critical_section_start(void)
@@ -431,9 +460,13 @@ int main(void)
Error_Handler();
/* Initialize the ibuf queues. */
+ ibufs = (rpc_buffer_t *)sdram_malloc(NUM_RPC_TASK * sizeof(rpc_buffer_t));
+ if (ibufs == NULL)
+ Error_Handler();
+ memset(ibufs, 0, NUM_RPC_TASK * sizeof(rpc_buffer_t));
memset(&ibuf_waiting, 0, sizeof(ibuf_waiting));
memset(&ibuf_ready, 0, sizeof(ibuf_ready));
- for (size_t i = 0; i < sizeof(ibufs)/sizeof(ibufs[0]); ++i)
+ for (size_t i = 0; i < NUM_RPC_TASK; ++i)
ibuf_put(&ibuf_waiting, &ibufs[i]);
/* Create the rpc dispatch worker tasks. */
@@ -443,8 +476,14 @@ int main(void)
void *stack = (void *)sdram_malloc(TASK_STACK_SIZE);
if (stack == NULL)
Error_Handler();
- if (task_add(label[i], dispatch_task, &ibufs[i], stack, TASK_STACK_SIZE) == NULL)
- Error_Handler();
+ if (i == NUM_RPC_TASK - 1) {
+ if (task_add("hashsig_restart", hashsig_restart_task, label[i], stack, TASK_STACK_SIZE) == NULL)
+ Error_Handler();
+ }
+ else {
+ if (task_add(label[i], dispatch_task, NULL, stack, TASK_STACK_SIZE) == NULL)
+ Error_Handler();
+ }
}
/* Create the busy task. */
@@ -461,9 +500,13 @@ int main(void)
*/
/* Create the CLI task. */
- if (task_add("cli", (funcp_t)cli_main, NULL, cli_stack, sizeof(cli_stack)) == NULL)
+ void *cli_stack = (void *)sdram_malloc(CLI_STACK_SIZE);
+ if (task_add("cli", (funcp_t)cli_main, NULL, cli_stack, CLI_STACK_SIZE) == NULL)
Error_Handler();
/* Start the tasker */
task_yield();
+
+ /*NOTREACHED*/
+ return 0;
}
diff --git a/projects/hsm/mgmt-keystore.c b/projects/hsm/mgmt-keystore.c
index b79a5fe..9eb42da 100644
--- a/projects/hsm/mgmt-keystore.c
+++ b/projects/hsm/mgmt-keystore.c
@@ -50,6 +50,7 @@
#include <stdlib.h>
#include <string.h>
+#include <strings.h>
#include <ctype.h>
@@ -180,6 +181,8 @@ static int cmd_keystore_delete_key(struct cli_def *cli, const char *command, cha
return CLI_OK;
}
+#include "ks.h"
+
static int show_keys(struct cli_def *cli, const char *title)
{
const hal_client_handle_t client = { -1 };
@@ -198,6 +201,16 @@ static int show_keys(struct cli_def *cli, const char *title)
cli_print(cli, title);
+ size_t avail;
+ if ((status = hal_ks_available(hal_ks_token, &avail)) == HAL_OK)
+ cli_print(cli, "Token keystore: %d available", avail);
+ else
+ cli_print(cli, "Error reading token keystore: %s", hal_error_string(status));
+ if ((status = hal_ks_available(hal_ks_volatile, &avail)) == HAL_OK)
+ cli_print(cli, "Volatile keystore: %d available", avail);
+ else
+ cli_print(cli, "Error reading volatile keystore: %s", hal_error_string(status));
+
while (!done) {
if ((status = hal_rpc_pkey_match(client, session, HAL_KEY_TYPE_NONE, HAL_CURVE_NONE,
@@ -248,6 +261,10 @@ static int show_keys(struct cli_def *cli, const char *title)
case HAL_KEY_TYPE_RSA_PUBLIC: type_name = "RSA public"; break;
case HAL_KEY_TYPE_EC_PRIVATE: type_name = "EC private"; break;
case HAL_KEY_TYPE_EC_PUBLIC: type_name = "EC public"; break;
+ case HAL_KEY_TYPE_HASHSIG_PRIVATE: type_name = "hashsig private"; break;
+ case HAL_KEY_TYPE_HASHSIG_PUBLIC: type_name = "hashsig public"; break;
+ case HAL_KEY_TYPE_HASHSIG_LMS: type_name = "hashsig lms"; break;
+ case HAL_KEY_TYPE_HASHSIG_LMOTS: type_name = "hashsig lmots"; break;
}
const char *curve_name = "unknown";
@@ -304,13 +321,34 @@ static int cmd_keystore_erase(struct cli_def *cli, const char *command, char *ar
{
hal_error_t err;
HAL_StatusTypeDef status;
+ int preserve_PINs = 0;
command = command;
- if (argc != 1 || strcmp(argv[0], "YesIAmSure") != 0) {
- cli_print(cli, "Syntax: keystore erase YesIAmSure");
+ if (argc < 1 || argc > 2 || strcmp(argv[0], "YesIAmSure") != 0) {
+ usage:
+ cli_print(cli, "Syntax: keystore erase YesIAmSure [preservePINs]");
return CLI_ERROR;
}
+ if (argc == 2) {
+ if (strcasecmp(argv[1], "preservePINs") != 0)
+ goto usage;
+ else
+ preserve_PINs = 1;
+ }
+
+ hal_user_t users[3] = { HAL_USER_NORMAL, HAL_USER_SO, HAL_USER_WHEEL };
+ hal_ks_pin_t pins[3];
+ if (preserve_PINs) {
+ for (size_t i = 0; i < 3; ++i) {
+ const hal_ks_pin_t *pin;
+ if (hal_get_pin(users[i], &pin) != HAL_OK) {
+ cli_print(cli, "Failed to get the PINs");
+ return CLI_ERROR;
+ }
+ memcpy(&pins[i], pin, sizeof(*pin));
+ }
+ }
cli_print(cli, "OK, erasing keystore, this will take about 45 seconds...");
if ((status = keystore_erase_bulk()) != CMSIS_HAL_OK) {
@@ -328,6 +366,15 @@ static int cmd_keystore_erase(struct cli_def *cli, const char *command, char *ar
return CLI_ERROR;
}
+ if (preserve_PINs) {
+ for (size_t i = 0; i < 3; ++i) {
+ if (hal_set_pin(users[i], &pins[i]) != HAL_OK) {
+ cli_print(cli, "Failed to restore the PINs");
+ return CLI_ERROR;
+ }
+ }
+ }
+
cli_print(cli, "Keystore erased");
return CLI_OK;
}
diff --git a/projects/hsm/mgmt-masterkey.c b/projects/hsm/mgmt-masterkey.c
index 765cb10..e63e0e0 100644
--- a/projects/hsm/mgmt-masterkey.c
+++ b/projects/hsm/mgmt-masterkey.c
@@ -60,24 +60,6 @@ static char * _status2str(const hal_error_t status)
}
}
-static int _parse_hex_groups(uint8_t *buf, size_t len, char *argv[], int argc)
-{
- int i;
- uint32_t *dst = (uint32_t *) buf;
- uint32_t *end = (uint32_t *) buf + len - 1;
- char *err_ptr = NULL;
-
- if (! argc) return 0;
-
- for (i = 0; i < argc; i++) {
- if (dst >= end) return -1;
- *dst++ = strtoul(argv[i], &err_ptr, 16);
- if (*err_ptr) return -2;
- }
-
- return 1;
-}
-
static int cmd_masterkey_status(struct cli_def *cli, const char *command, char *argv[], int argc)
{
hal_error_t status;
@@ -97,12 +79,54 @@ static int cmd_masterkey_status(struct cli_def *cli, const char *command, char *
return CLI_OK;
}
+static int str_to_hex_digit(char c)
+{
+ if (c >= '0' && c <= '9')
+ c -= '0';
+ else if (c >= 'a' && c <= 'f')
+ c = c - 'a' + 10;
+ else if (c >= 'A' && c <= 'F')
+ c = c - 'A' + 10;
+ else
+ return -1;
+
+ return c;
+}
+
+static inline char hex_to_str_digit(const uint8_t c)
+{
+ return (c < 10) ? ((char)c + '0') : ((char)c + 'A' - 10);
+}
+
+static char *hexdump_kek(const uint8_t * const kek)
+{
+ /* This is only for dumping masterkey values, so has no length checks.
+ * Do not use it for anything else.
+ *
+ * For convenience of possibly hand-copying and hand-retyping, the key
+ * is divided into 8 4-byte (8-character) groups.
+ */
+
+ static char buf[2 * KEK_LENGTH + 8];
+ char *dst = buf;
+
+ for (size_t i = 0; i < KEK_LENGTH; ++i) {
+ uint8_t b = kek[i];
+ *dst++ = hex_to_str_digit(b >> 4);
+ *dst++ = hex_to_str_digit(b & 0xf);
+ if ((i & 3) == 3)
+ *dst++ = ' ';
+ }
+ buf[sizeof(buf) - 1] = '\0';
+
+ return buf;
+}
+
static int _masterkey_set(struct cli_def *cli, char *argv[], int argc,
char *label, hal_error_t (*writer)(const uint8_t * const, const size_t))
{
uint8_t buf[KEK_LENGTH] = {0};
hal_error_t err;
- int i;
if (argc == 0) {
/* fill master key with yummy randomness */
@@ -110,20 +134,32 @@ static int _masterkey_set(struct cli_def *cli, char *argv[], int argc,
cli_print(cli, "Error getting random key: %s", hal_error_string(err));
return CLI_ERROR;
}
- cli_print(cli, "Random key:\n");
- uart_send_hexdump(buf, 0, sizeof(buf) - 1);
- cli_print(cli, "\n");
+ cli_print(cli, "Random key:\n%s", hexdump_kek(buf));
}
else {
- if ((i = _parse_hex_groups(&buf[0], sizeof(buf), argv, argc)) != 1) {
- cli_print(cli, "Failed parsing master key, expected up to 8 groups of 32-bit hex chars (%i)", i);
+ /* input is 32 hex bytes, arranged however the user wants */
+ size_t len = 0;
+ for (int i = 0; i < argc; ++i) {
+ for (char *cp = argv[i]; *cp != '\0'; ) {
+ int c;
+ if ((c = str_to_hex_digit(*cp++)) < 0)
+ goto errout;
+ buf[len] = c << 4;
+ if ((c = str_to_hex_digit(*cp++)) < 0)
+ goto errout;
+ buf[len] |= c & 0xf;
+ if (++len > KEK_LENGTH)
+ goto errout;
+ }
+ }
+ if (len < KEK_LENGTH) {
+ errout:
+ cli_print(cli, "Failed parsing master key, expected exactly %d hex bytes", KEK_LENGTH);
return CLI_ERROR;
}
- cli_print(cli, "Parsed key:\n");
- uart_send_hexdump(buf, 0, sizeof(buf) - 1);
- cli_print(cli, "\n");
+ cli_print(cli, "Parsed key:\n%s", hexdump_kek(buf));
}
if ((err = writer(buf, sizeof(buf))) == LIBHAL_OK) {
diff --git a/projects/libhal-test/main.c b/projects/libhal-test/main.c
index fff8c38..c0d9330 100644
--- a/projects/libhal-test/main.c
+++ b/projects/libhal-test/main.c
@@ -43,6 +43,7 @@ extern void __main(void);
int main(void)
{
stm_init();
+ HAL_Delay(500);
led_on(LED_GREEN);
__main();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 11:25:58 +0000