📄 grub-0.97-fc5-tcg-0.2.0-beta1.patch
字号:
+ movl %ebx, %eax+ ret++/*+ * int tcg_extend ( int pcr_index, *IN*+ * unsigned char *digest, *IN*+ * unsigned char *pcr_value ); *OUT*+ * Send TPM_Extend.+ * This returns 0 if successful. As defined by TCG PC Specification 1.00+ * (8.1.2 Return Codes, Page 40)+ */++ENTRY(tcg_extend)+ push %ebp+ movl %esp, %ebp+ push %ebx+ push %ecx+ push %edx+ push %esi+ push %edi++ movl 0x8(%ebp), %eax /* pcr_index */+ movb %al, ABS(tpm_extend_pcr_num)++ movl 0xC(%ebp), %esi /* *digest */+ movl $ABS(tpm_extend_digest), %edi+ movl $TCG_DIGEST_SIZE, %ecx+ cld+ rep+ movsb++ movl $ABS(tpm_extend_in), %esi+ call EXT_C(tcg_passthru_to_tpm)+ test %eax, %eax+ jnz tcg_extend_go_back++ /* Return PCR value */+ addl $(tpm_extend_pcr_value), %esi+ movl 0x24(%esp), %edi /* *pcr_value */+ movl $(TCG_PCR_VALUE_SIZE), %ecx+ cld+ rep+ movsb++tcg_extend_go_back:+ pop %edi+ pop %esi+ pop %edx+ pop %ecx+ pop %ebx+ pop %ebp+ ret+++/*+ * int tcg_pcr_read ( int pcr_index, *IN*+ * unsigned char *pcr_value ); *OUT*+ * Send TPM_PcrRead.+ * This returns 0 if successful. As defined by TCG PC Specification 1.00+ * (8.1.2 Return Codes, Page 40)+ */++ENTRY(tcg_pcr_read)+ push %ebp+ movl %esp, %ebp+ push %ebx+ push %ecx+ push %edx+ push %esi+ push %edi++ movl 0x1C(%esp), %eax /* pcr_index */+ movb %al, ABS(tpm_pcrread_pcrindex)++ movl $ABS(tpm_pcrread_in), %esi+ call EXT_C(tcg_passthru_to_tpm)+ test %eax, %eax+ jnz tcg_pcr_read_go_back++ /* Return PCR value */+ addl $(tpm_pcrread_pcr_value), %esi+ movl 0x20(%esp), %edi /* *pcr_value */+ movl $(TCG_PCR_VALUE_SIZE), %ecx+ cld+ rep+ movsb++tcg_pcr_read_go_back:+ pop %edi+ pop %esi+ pop %edx+ pop %ecx+ pop %ebx+ pop %ebp+ ret+ + +/*+ * int TCG_LogExtend ( int pcr_index, *IN+ * int eventtype *IN+ * int loddatasize *IN+ * unsigned char *logdata ) *IN+ * Log PCR event and extend.+ * This returns 0 if successful. As defined by TCG PC Specification 1.00+ * (8.1.2 Return Codes, Page 40)+ * BIOS Call "Int 1AH Function" to log TCG_PCR_EVENT+ * Call with %ax = 0xBB04h (TCG_LogEvent)+ * %es = Segment of the TPM input parameter block+ * %di = Offset of the TPM input parameter block+ * %ds = Segment of the TPM output parameter block+ * %si = Offset of the TPM output parameter block+ * %ebx = "TCPA" (0x41504354)+ * %ecx = 0+ * %edx = 0+ */+ENTRY(TCG_LogExtend)+ push %ebp+ movl %esp, %ebp+ push %ebx+ push %ecx+ push %edx+ push %esi+ push %edi+ /* ipb - PCR index */+ movl 0x08(%ebp), %eax+ movl %eax, ABS(tcg_le_ipb_pcr_index)++ /* ipb - type */+ movl 0x0C(%ebp), %eax+ movl %eax, ABS(tcg_le_ipb_eventtype)+ + /* ipb - Log Data Size */+ movl 0x10(%ebp), %eax+ movl %eax, ABS(tcg_le_ipb_logdatalen)++ /* ipb - Log Data Ptr */+ movl 0x14(%ebp), %esi+ movl %esi, ABS(tcg_le_ipb_logdata)++ /* ipb - clear Hash Data */+ xorl %esi, %esi+ movl %esi, ABS(tcg_le_ipb_hashdatalen)+ movl %esi, ABS(tcg_le_ipb_hashdata)+ ++#ifdef TCG_BIOS_BIGREALMODE_FIX + call EXT_C(prot_to_big_real)+#else + call EXT_C(prot_to_real)+#endif /* TCG_BIOS_BIGREALMODE_FIX */+ .code16++ /* TCG_LogEvent */+ MSG(logevent_msg)++ movw $0xBB04, %ax+ movw $ABS(tcg_le_ipb), %di+ movw $ABS(tcg_le_opb), %si+ movl ABS(tcg_signature), %ebx+ xorl %ecx, %ecx+ movl %ecx, %edx+ int $0x1A+ and %eax, %eax+ jz tle3_ok+ MSG(ng_msg)+ jmp tle3_go_back++tle3_ok:+ MSG(ok_msg)++tle3_go_back:+ movl %eax, %ebx+ DATA32 call EXT_C(real_to_prot)+ .code32++ movl %ebx, %eax+ pop %edi+ pop %esi+ pop %edx+ pop %ecx+ pop %ebx+ pop %ebp+ ret+ ++/*+ * int TCG_HashAll ( int len, *IN+ * unsigned char *data, *IN+ * unsigned char *digest ); *OUT+ * Hash the data+ * This returns 0 if successful. As defined by TCG PC Specification 1.1+ * (8.1.9 Return Codes, Page 50)+ * BIOS Call "Int 1AH Function" to Hash the Data+ * Call with %ax = 0xBB05h (TCG_HashAll)+ * %es = Segment of the TPM input parameter block+ * %di = Offset of the TPM input parameter block+ * %ds = Segment of the TPM output parameter block+ * %si = Offset of the TPM output parameter block+ * %ebx = "TCPA" (0x41504354)+ * %ecx = 0+ * %edx = 0+ *+ * 2004-10-15 S. Munetoh added+ *+ */+ENTRY(TCG_HashAll)+ push %ebp+ /* movl %esp, %ebp */+ push %ebx+ push %ecx+ push %edx+ push %esi+ push %edi++ /* len */+ movl 0x1c(%esp), %eax+ movl %eax, ABS(tcg_hashall_ipb_data_len)++ /* *data */+ movl 0x20(%esp), %esi + movl %esi, ABS(tcg_hashall_ipb_data_ptr)+ +#ifdef TCG_BIOS_BIGREALMODE_FIX + call EXT_C(prot_to_big_real)+#else + call EXT_C(prot_to_real)+#endif /* TCG_BIOS_BIGREALMODE_FIX */+ .code16++ /* TCG_HashAll */+ MSG(hashall_msg)++ movw $0xBB05, %ax+ movw $ABS(tcg_hashall_ipb), %di+ movw $ABS(tcg_hashall_opb), %si+ movl ABS(tcg_signature), %ebx+ xorl %ecx, %ecx+ movl %ecx, %edx+ int $0x1A+ and %eax, %eax+ jz tcg_hashall_ok+ MSG(ng_msg)+ jmp tcg_hashall_go_back+tcg_hashall_ok:+ MSG(ok_msg)+tcg_hashall_go_back:+ movl %eax, %ebx+ DATA32 call EXT_C(real_to_prot)+ .code32+ + /* Return Digest value, whether call is ok or not*/ + /* this will copy the digest */+ movl $ABS(tcg_hashall_opb), %esi+ movl 0x24(%esp), %edi + movl $TCG_DIGEST_SIZE, %ecx + cld+ rep+ movsb++ movl %ebx, %eax+ pop %edi+ pop %esi+ pop %edx+ pop %ecx+ pop %ebx+ pop %ebp+ ret++#if 0 +/* + Fujitsu + Infineon TPM v1.1++ 2006-06-23 SM FOR TEST+ */+ENTRY(TCG_HashAll2)+ push %ebp+ /* movl %esp, %ebp */+ push %ebx+ push %ecx+ push %edx+ push %esi+ push %edi++ /* len */+ movl 0x1c(%esp), %eax+ movl %eax, ABS(tcg_hashall_ipb_data_len)++ /* *data */+ movl 0x20(%esp), %esi + movl %esi, ABS(tcg_hashall_ipb_data_ptr)+ +#ifdef TCG_BIOS_BIGREALMODE_FIX + call EXT_C(prot_to_big_real)+#else + call EXT_C(prot_to_real)+#endif /* TCG_BIOS_BIGREALMODE_FIX */+ .code16++ /* TCG_HashAll */+ MSG(hashall_msg)++ movw $0xBB05, %ax+ movw $ABS(tcg_hashall_ipb), %di+ movw $ABS(tcg_hashall_opb), %si+ movl ABS(tcg_signature), %ebx+ xorl %ecx, %ecx+ movl %ecx, %edx+ int $0x1A+ + and %eax, %eax+ jz tcg_hashall_ok+ MSG(ng_msg)+ jmp tcg_hashall_go_back+tcg_hashall_ok:+ MSG(ok_msg)+tcg_hashall_go_back:+ movl %eax, %ebx+ DATA32 call EXT_C(real_to_prot)+ .code32+ + /* Return Digest value, whether call is ok or not*/ + /* this will copy the digest */+ movl $ABS(tcg_hashall_opb), %esi+ movl 0x24(%esp), %edi + movl $TCG_DIGEST_SIZE, %ecx + cld+ rep+ movsb++ movl %ebx, %eax+ pop %edi+ pop %esi+ pop %edx+ pop %ecx+ pop %ebx+ pop %ebp+ ret+#endif++ + +/*+ * int TCG_CompactHashLogExtendEvent( int pcr_index, *IN+ * int hashdatasize *IN+ * unsigned char *hashdeta) *IN+ *+ * Event Type : EV_COMPACT_HASH (0Ch) - fixed+ * Event Field : 4 bytes "GRUB"+ *+ * BIOS Call "Int 1AH Function" to log TCG_PCR_EVENT+ * Call with %ax = 0xBB07h (TCG_CompactHashLogExtendEvent)+ * %es = Segment of data to be hashed+ * %di = Offset of data to be hashed+ * %esi = event field+ * %ebx = "TCPA" (0x41504354)+ * %ecx = data length+ * %edx = pcr index+ *+ * Return %eax = Return code+ * %edx = event num+ */+ENTRY(TCG_CompactHashLogExtendEvent)+ push %ebp+ movl %esp, %ebp+ push %ebx+ push %ecx+ push %edx+ push %esi+ push %edi+ /* PCR index */+ movl 0x08(%ebp), %edx ++ /* Hash Data Size */+ movl 0x0C(%ebp), %ecx + + /* Hash Data Ptr */+#if 0 + /* Sorry, this does not work */+ movw 0x10(%ebp), %ax+ shlw $12, %ax+ movw %ax, %es+ movw 0x12(%ebp), %di+#endif + +#ifdef TCG_BIOS_BIGREALMODE_FIX + call EXT_C(prot_to_big_real)+#else + call EXT_C(prot_to_real)+#endif /* TCG_BIOS_BIGREALMODE_FIX */+ .code16++ /* TCG_CompactHashLogExtendEvent */+ MSG(compacthashlogevent_msg)++ movw $0xBB07, %ax+ movw $ABS(tcg_chlee_buf), %di+ movl ABS(tcg_signature), %ebx+ movl ABS(tcg_grub), %esi+ int $0x1A+ and %eax, %eax+ jz tcg_chlee_ok+ MSG(ng_msg)+ jmp tcg_chlee_go_back++tcg_chlee_ok:+ MSG(ok_msg)++tcg_chlee_go_back:+ movl %eax, %ebx /* TODO return 3h??? */+ DATA32 call EXT_C(real_to_prot)+ .code32++ movl %ebx, %eax+ pop %edi+ pop %esi+ pop %edx+ pop %ecx+ pop %ebx+ pop %ebp+ ret+ +#ifdef TCG_BIOS_BIGREALMODE_FIX+/*+ * "prot_to_big_real" enters into "Big Real Mode" which differs+ * from real mode in that "Big Real Mode" has no segment limit of 64KB.+ * Int 1AH for TCG functions assumes the "Big Real Mode".+ *+ * NOTE: Use of this function messes up %eax and %ebp.+ */++ENTRY(prot_to_big_real)+ /* just in case, set GDT */+ lgdt gdtdesc++ /* save the protected mode stack */+ movl %esp, %eax+ movl %eax, protstack++ /* get the return address */+ movl (%esp), %eax+ movl %eax, STACKOFF++ /* set up new stack */+ movl $STACKOFF, %eax+ movl %eax, %esp+ movl %eax, %ebp++ /* set up segment limits */+ movw $PROT_MODE_DSEG, %ax+ movw %ax, %ds+ movw %ax, %es+ movw %ax, %fs+ movw %ax, %gs+ movw %ax, %ss++ /* this might be an extra step */+ ljmp $PSEUDO_RM_CSEG, $tmpcsegb /* jump to a 16 bit segment */++tmpcsegb:+ .code16++ /* clear the PE bit of CR0 */+ movl %cr0, %eax+ andl $CR0_PE_OFF, %eax+ movl %eax, %cr0++ /* flush prefetch queue, reload %cs */+ DATA32 ljmp $0, $realcsegb++realcsegb:+ /* we are in real mode now+ * set up the real mode segment registers : DS, SS, ES+ */+ /* zero %eax */+ xorl %eax, %eax++ movw %ax, %ds+ movw %ax, %es+ movw %ax, %fs+ movw %ax, %gs+ movw %ax, %ss++ /* Enable A20 gate for the case it's disabled */+ movw $0x2401, %ax+ int $0x15++ /* restore interrupts */+ sti+⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -