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Differential D18256 Diff 51389 head/sys/dev/sfxge/common/ef10_nvram.c

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head/sys/dev/sfxge/common/ef10_nvram.c

Show First 20 Lines • Show All 224 Lines • ▼ Show 20 Linestlv_validate_state(
} }
if (cursor->current > cursor->limit) { if (cursor->current > cursor->limit) {
rc = EINVAL; rc = EINVAL;
goto fail2; goto fail2;
} }
if (tlv_tag(cursor) != TLV_TAG_END) { if (tlv_tag(cursor) != TLV_TAG_END) {
/* Check current item has space for tag and length */ /* Check current item has space for tag and length */
if (cursor->current > (cursor->limit - 2)) { if (cursor->current > (cursor->limit - 1)) {
cursor->current = NULL; cursor->current = NULL;
rc = EFAULT; rc = EFAULT;
goto fail3; goto fail3;
} }
/* Check we have value data for current item and another tag */ /* Check we have value data for current item and an END tag */
if (tlv_next_item_ptr(cursor) > (cursor->limit - 1)) { if (tlv_next_item_ptr(cursor) > cursor->limit) {
cursor->current = NULL; cursor->current = NULL;
rc = EFAULT; rc = EFAULT;
goto fail4; goto fail4;
} }
} }
return (0); return (0);
▲ Show 20 Lines • Show All 408 Lines • ▼ Show 20 Linesfail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc); EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc); return (rc);
} }
/* Validate buffer contents (before writing to flash) */ /* Validate buffer contents (before writing to flash) */
__checkReturn efx_rc_t __checkReturn efx_rc_t
ef10_nvram_buffer_validate( ef10_nvram_buffer_validate(
__in efx_nic_t *enp,
__in uint32_t partn, __in uint32_t partn,
__in_bcount(partn_size) caddr_t partn_data, __in_bcount(partn_size) caddr_t partn_data,
__in size_t partn_size) __in size_t partn_size)
{ {
tlv_cursor_t cursor; tlv_cursor_t cursor;
struct tlv_partition_header *header; struct tlv_partition_header *header;
struct tlv_partition_trailer *trailer; struct tlv_partition_trailer *trailer;
size_t total_length; size_t total_length;
uint32_t cksum; uint32_t cksum;
int pos; int pos;
efx_rc_t rc; efx_rc_t rc;
_NOTE(ARGUNUSED(enp, partn))
EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK); EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK);
if ((partn_data == NULL) || (partn_size == 0)) { if ((partn_data == NULL) || (partn_size == 0)) {
rc = EINVAL; rc = EINVAL;
goto fail1; goto fail1;
} }
/* The partition header must be the first item (at offset zero) */ /* The partition header must be the first item (at offset zero) */
Show All 10 Linesef10_nvram_buffer_validate(
/* Check TLV partition length (includes the END tag) */ /* Check TLV partition length (includes the END tag) */
total_length = __LE_TO_CPU_32(header->total_length); total_length = __LE_TO_CPU_32(header->total_length);
if (total_length > partn_size) { if (total_length > partn_size) {
rc = EFBIG; rc = EFBIG;
goto fail4; goto fail4;
} }
/* Check partition header matches partn */
if (__LE_TO_CPU_16(header->type_id) != partn) {
rc = EINVAL;
goto fail5;
}
/* Check partition ends with PARTITION_TRAILER and END tags */ /* Check partition ends with PARTITION_TRAILER and END tags */
if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) { if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
rc = EINVAL; rc = EINVAL;
goto fail5; goto fail6;
} }
trailer = (struct tlv_partition_trailer *)tlv_item(&cursor); trailer = (struct tlv_partition_trailer *)tlv_item(&cursor);
if ((rc = tlv_advance(&cursor)) != 0) { if ((rc = tlv_advance(&cursor)) != 0) {
rc = EINVAL; rc = EINVAL;
goto fail6; goto fail7;
} }
if (tlv_tag(&cursor) != TLV_TAG_END) { if (tlv_tag(&cursor) != TLV_TAG_END) {
rc = EINVAL; rc = EINVAL;
goto fail7; goto fail8;
} }
/* Check generation counts are consistent */ /* Check generation counts are consistent */
if (trailer->generation != header->generation) { if (trailer->generation != header->generation) {
rc = EINVAL; rc = EINVAL;
goto fail8; goto fail9;
} }
/* Verify partition checksum */ /* Verify partition checksum */
cksum = 0; cksum = 0;
for (pos = 0; (size_t)pos < total_length; pos += sizeof (uint32_t)) { for (pos = 0; (size_t)pos < total_length; pos += sizeof (uint32_t)) {
cksum += *((uint32_t *)(partn_data + pos)); cksum += *((uint32_t *)(partn_data + pos));
} }
if (cksum != 0) { if (cksum != 0) {
rc = EINVAL; rc = EINVAL;
goto fail9; goto fail10;
} }
return (0); return (0);
fail10:
EFSYS_PROBE(fail10);
fail9: fail9:
EFSYS_PROBE(fail9); EFSYS_PROBE(fail9);
fail8: fail8:
EFSYS_PROBE(fail8); EFSYS_PROBE(fail8);
fail7: fail7:
EFSYS_PROBE(fail7); EFSYS_PROBE(fail7);
fail6: fail6:
EFSYS_PROBE(fail6); EFSYS_PROBE(fail6);
fail5: fail5:
EFSYS_PROBE(fail5); EFSYS_PROBE(fail5);
fail4: fail4:
EFSYS_PROBE(fail4); EFSYS_PROBE(fail4);
fail3: fail3:
EFSYS_PROBE(fail3); EFSYS_PROBE(fail3);
fail2: fail2:
EFSYS_PROBE(fail2); EFSYS_PROBE(fail2);
fail1: fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc); EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc); return (rc);
} }
void
ef10_nvram_buffer_init(
__out_bcount(buffer_size)
caddr_t bufferp,
__in size_t buffer_size)
{
uint32_t *buf = (uint32_t *)bufferp;
memset(buf, 0xff, buffer_size);
tlv_init_block(buf);
}
__checkReturn efx_rc_t __checkReturn efx_rc_t
ef10_nvram_buffer_create( ef10_nvram_buffer_create(
__in efx_nic_t *enp, __in uint32_t partn_type,
__in uint16_t partn_type, __out_bcount(partn_size)
__in_bcount(partn_size) caddr_t partn_data, caddr_t partn_data,
__in size_t partn_size) __in size_t partn_size)
{ {
uint32_t *buf = (uint32_t *)partn_data; uint32_t *buf = (uint32_t *)partn_data;
efx_rc_t rc; efx_rc_t rc;
tlv_cursor_t cursor; tlv_cursor_t cursor;
struct tlv_partition_header header; struct tlv_partition_header header;
struct tlv_partition_trailer trailer; struct tlv_partition_trailer trailer;
unsigned int min_buf_size = sizeof (struct tlv_partition_header) + unsigned int min_buf_size = sizeof (struct tlv_partition_header) +
sizeof (struct tlv_partition_trailer); sizeof (struct tlv_partition_trailer);
if (partn_size < min_buf_size) { if (partn_size < min_buf_size) {
rc = EINVAL; rc = EINVAL;
goto fail1; goto fail1;
} }
memset(buf, 0xff, partn_size); ef10_nvram_buffer_init(partn_data, partn_size);
tlv_init_block(buf);
if ((rc = tlv_init_cursor(&cursor, buf, if ((rc = tlv_init_cursor(&cursor, buf,
(uint32_t *)((uint8_t *)buf + partn_size), (uint32_t *)((uint8_t *)buf + partn_size),
buf)) != 0) { buf)) != 0) {
goto fail2; goto fail2;
} }
header.tag = __CPU_TO_LE_32(TLV_TAG_PARTITION_HEADER); header.tag = __CPU_TO_LE_32(TLV_TAG_PARTITION_HEADER);
header.length = __CPU_TO_LE_32(sizeof (header) - 8); header.length = __CPU_TO_LE_32(sizeof (header) - 8);
Show All 15 Linesef10_nvram_buffer_create(
if ((rc = tlv_insert(&cursor, TLV_TAG_PARTITION_TRAILER, if ((rc = tlv_insert(&cursor, TLV_TAG_PARTITION_TRAILER,
(uint8_t *)&trailer.generation, sizeof (trailer) - 8)) != 0) (uint8_t *)&trailer.generation, sizeof (trailer) - 8)) != 0)
goto fail5; goto fail5;
if ((rc = tlv_update_partition_len_and_cks(&cursor)) != 0) if ((rc = tlv_update_partition_len_and_cks(&cursor)) != 0)
goto fail6; goto fail6;
/* Check that the partition is valid. */ /* Check that the partition is valid. */
if ((rc = ef10_nvram_buffer_validate(enp, partn_type, if ((rc = ef10_nvram_buffer_validate(partn_type,
partn_data, partn_size)) != 0) partn_data, partn_size)) != 0)
goto fail7; goto fail7;
return (0); return (0);
fail7: fail7:
EFSYS_PROBE(fail7); EFSYS_PROBE(fail7);
fail6: fail6:
▲ Show 20 Lines • Show All 155 Lines • ▼ Show 20 Lines *lengthp = byte_offset(tlv_next_item_ptr(&cursor),
cursor.current); cursor.current);
return (B_TRUE); return (B_TRUE);
} }
return (B_FALSE); return (B_FALSE);
} }
__checkReturn efx_rc_t __checkReturn efx_rc_t
ef10_nvram_buffer_peek_item(
__in_bcount(buffer_size)
caddr_t bufferp,
__in size_t buffer_size,
__in uint32_t offset,
__out uint32_t *tagp,
__out uint32_t *lengthp,
__out uint32_t *value_offsetp)
{
efx_rc_t rc;
tlv_cursor_t cursor;
uint32_t tag;
if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
buffer_size, offset)) != 0) {
goto fail1;
}
tag = tlv_tag(&cursor);
*tagp = tag;
if (tag == TLV_TAG_END) {
/*
* To allow stepping over the END tag, report the full tag
* length and a zero length value.
*/
*lengthp = sizeof (tag);
*value_offsetp = sizeof (tag);
} else {
*lengthp = byte_offset(tlv_next_item_ptr(&cursor),
cursor.current);
*value_offsetp = byte_offset((uint32_t *)tlv_value(&cursor),
cursor.current);
}
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_nvram_buffer_get_item( ef10_nvram_buffer_get_item(
__in_bcount(buffer_size) __in_bcount(buffer_size)
caddr_t bufferp, caddr_t bufferp,
__in size_t buffer_size, __in size_t buffer_size,
__in uint32_t offset, __in uint32_t offset,
__in uint32_t length, __in uint32_t length,
__out_bcount_part(item_max_size, *lengthp) __out uint32_t *tagp,
caddr_t itemp, __out_bcount_part(value_max_size, *lengthp)
__in size_t item_max_size, caddr_t valuep,
__in size_t value_max_size,
__out uint32_t *lengthp) __out uint32_t *lengthp)
{ {
efx_rc_t rc; efx_rc_t rc;
tlv_cursor_t cursor; tlv_cursor_t cursor;
uint32_t item_length; uint32_t value_length;
if (item_max_size < length) { if (buffer_size < (offset + length)) {
rc = ENOSPC; rc = ENOSPC;
goto fail1; goto fail1;
} }
if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp, if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
buffer_size, offset)) != 0) { buffer_size, offset)) != 0) {
goto fail2; goto fail2;
} }
item_length = tlv_length(&cursor); value_length = tlv_length(&cursor);
if (length < item_length) { if (value_max_size < value_length) {
rc = ENOSPC; rc = ENOSPC;
goto fail3; goto fail3;
} }
memcpy(itemp, tlv_value(&cursor), item_length); memcpy(valuep, tlv_value(&cursor), value_length);
*lengthp = item_length; *tagp = tlv_tag(&cursor);
*lengthp = value_length;
return (0); return (0);
fail3: fail3:
EFSYS_PROBE(fail3); EFSYS_PROBE(fail3);
fail2: fail2:
EFSYS_PROBE(fail2); EFSYS_PROBE(fail2);
fail1: fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc); EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc); return (rc);
} }
__checkReturn efx_rc_t __checkReturn efx_rc_t
ef10_nvram_buffer_insert_item( ef10_nvram_buffer_insert_item(
__in_bcount(buffer_size) __in_bcount(buffer_size)
caddr_t bufferp, caddr_t bufferp,
__in size_t buffer_size, __in size_t buffer_size,
__in uint32_t offset, __in uint32_t offset,
__in_bcount(length) caddr_t keyp, __in uint32_t tag,
__in_bcount(length) caddr_t valuep,
__in uint32_t length, __in uint32_t length,
__out uint32_t *lengthp) __out uint32_t *lengthp)
{ {
efx_rc_t rc; efx_rc_t rc;
tlv_cursor_t cursor; tlv_cursor_t cursor;
if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp, if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
buffer_size, offset)) != 0) { buffer_size, offset)) != 0) {
goto fail1; goto fail1;
} }
rc = tlv_insert(&cursor, TLV_TAG_LICENSE, (uint8_t *)keyp, length); rc = tlv_insert(&cursor, tag, (uint8_t *)valuep, length);
if (rc != 0)
goto fail2;
*lengthp = byte_offset(tlv_next_item_ptr(&cursor),
cursor.current);
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_nvram_buffer_modify_item(
__in_bcount(buffer_size)
caddr_t bufferp,
__in size_t buffer_size,
__in uint32_t offset,
__in uint32_t tag,
__in_bcount(length) caddr_t valuep,
__in uint32_t length,
__out uint32_t *lengthp)
{
efx_rc_t rc;
tlv_cursor_t cursor;
if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
buffer_size, offset)) != 0) {
goto fail1;
}
rc = tlv_modify(&cursor, tag, (uint8_t *)valuep, length);
if (rc != 0) { if (rc != 0) {
goto fail2; goto fail2;
} }
*lengthp = byte_offset(tlv_next_item_ptr(&cursor), *lengthp = byte_offset(tlv_next_item_ptr(&cursor),
cursor.current); cursor.current);
return (0); return (0);
fail2: fail2:
EFSYS_PROBE(fail2); EFSYS_PROBE(fail2);
fail1: fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc); EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc); return (rc);
} }
__checkReturn efx_rc_t __checkReturn efx_rc_t
ef10_nvram_buffer_delete_item( ef10_nvram_buffer_delete_item(
__in_bcount(buffer_size) __in_bcount(buffer_size)
caddr_t bufferp, caddr_t bufferp,
__in size_t buffer_size, __in size_t buffer_size,
__in uint32_t offset, __in uint32_t offset,
__in uint32_t length, __in uint32_t length,
▲ Show 20 Lines • Show All 1,339 Lines • Show Last 20 Lines