diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_init.c | 146 |
1 files changed, 139 insertions, 7 deletions
diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c index f0df9717aece..21a6e9f3dac5 100644 --- a/drivers/net/qlcnic/qlcnic_init.c +++ b/drivers/net/qlcnic/qlcnic_init.c @@ -568,21 +568,123 @@ struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section) return NULL; } +#define FILEHEADER_SIZE (14 * 4) + static int -qlcnic_set_product_offs(struct qlcnic_adapter *adapter) +qlcnic_validate_header(struct qlcnic_adapter *adapter) { - struct uni_table_desc *ptab_descr; const u8 *unirom = adapter->fw->data; - u32 i; + struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0]; + __le32 fw_file_size = adapter->fw->size; __le32 entries; + __le32 entry_size; + __le32 tab_size; + + if (fw_file_size < FILEHEADER_SIZE) + return -EINVAL; + + entries = cpu_to_le32(directory->num_entries); + entry_size = cpu_to_le32(directory->entry_size); + tab_size = cpu_to_le32(directory->findex) + (entries * entry_size); + + if (fw_file_size < tab_size) + return -EINVAL; + + return 0; +} + +static int +qlcnic_validate_bootld(struct qlcnic_adapter *adapter) +{ + struct uni_table_desc *tab_desc; + struct uni_data_desc *descr; + const u8 *unirom = adapter->fw->data; + int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + + QLCNIC_UNI_BOOTLD_IDX_OFF)); + __le32 offs; + __le32 tab_size; + __le32 data_size; + + tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD); + + if (!tab_desc) + return -EINVAL; + + tab_size = cpu_to_le32(tab_desc->findex) + + (cpu_to_le32(tab_desc->entry_size * (idx + 1))); + + if (adapter->fw->size < tab_size) + return -EINVAL; + + offs = cpu_to_le32(tab_desc->findex) + + (cpu_to_le32(tab_desc->entry_size) * (idx)); + descr = (struct uni_data_desc *)&unirom[offs]; + + data_size = descr->findex + cpu_to_le32(descr->size); + + if (adapter->fw->size < data_size) + return -EINVAL; + + return 0; +} + +static int +qlcnic_validate_fw(struct qlcnic_adapter *adapter) +{ + struct uni_table_desc *tab_desc; + struct uni_data_desc *descr; + const u8 *unirom = adapter->fw->data; + int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] + + QLCNIC_UNI_FIRMWARE_IDX_OFF)); + __le32 offs; + __le32 tab_size; + __le32 data_size; + + tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW); + + if (!tab_desc) + return -EINVAL; + + tab_size = cpu_to_le32(tab_desc->findex) + + (cpu_to_le32(tab_desc->entry_size * (idx + 1))); + + if (adapter->fw->size < tab_size) + return -EINVAL; + + offs = cpu_to_le32(tab_desc->findex) + + (cpu_to_le32(tab_desc->entry_size) * (idx)); + descr = (struct uni_data_desc *)&unirom[offs]; + data_size = descr->findex + cpu_to_le32(descr->size); + + if (adapter->fw->size < data_size) + return -EINVAL; + + return 0; +} + +static int +qlcnic_validate_product_offs(struct qlcnic_adapter *adapter) +{ + struct uni_table_desc *ptab_descr; + const u8 *unirom = adapter->fw->data; int mn_present = qlcnic_has_mn(adapter); + __le32 entries; + __le32 entry_size; + __le32 tab_size; + u32 i; ptab_descr = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_PRODUCT_TBL); - if (ptab_descr == NULL) - return -1; + if (!ptab_descr) + return -EINVAL; entries = cpu_to_le32(ptab_descr->num_entries); + entry_size = cpu_to_le32(ptab_descr->entry_size); + tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size); + + if (adapter->fw->size < tab_size) + return -EINVAL; + nomn: for (i = 0; i < entries; i++) { @@ -609,7 +711,37 @@ nomn: mn_present = 0; goto nomn; } - return -1; + return -EINVAL; +} + +static int +qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter) +{ + if (qlcnic_validate_header(adapter)) { + dev_err(&adapter->pdev->dev, + "unified image: header validation failed\n"); + return -EINVAL; + } + + if (qlcnic_validate_product_offs(adapter)) { + dev_err(&adapter->pdev->dev, + "unified image: product validation failed\n"); + return -EINVAL; + } + + if (qlcnic_validate_bootld(adapter)) { + dev_err(&adapter->pdev->dev, + "unified image: bootld validation failed\n"); + return -EINVAL; + } + + if (qlcnic_validate_fw(adapter)) { + dev_err(&adapter->pdev->dev, + "unified image: firmware validation failed\n"); + return -EINVAL; + } + + return 0; } static @@ -858,7 +990,7 @@ qlcnic_validate_firmware(struct qlcnic_adapter *adapter) u8 fw_type = adapter->fw_type; if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) { - if (qlcnic_set_product_offs(adapter)) + if (qlcnic_validate_unified_romimage(adapter)) return -EINVAL; min_size = QLCNIC_UNI_FW_MIN_SIZE; |