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openssl/openssl-1.1.1-intel-cet.patch

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diff --git a/crypto/aes/asm/aesni-x86_64.pl b/crypto/aes/asm/aesni-x86_64.pl
index 5807f4eff7..2462820f95 100644
--- a/crypto/aes/asm/aesni-x86_64.pl
+++ b/crypto/aes/asm/aesni-x86_64.pl
@@ -275,6 +275,7 @@ $code.=<<___;
.align 16
${PREFIX}_encrypt:
.cfi_startproc
+ endbranch
movups ($inp),$inout0 # load input
mov 240($key),$rounds # key->rounds
___
@@ -293,6 +294,7 @@ $code.=<<___;
.align 16
${PREFIX}_decrypt:
.cfi_startproc
+ endbranch
movups ($inp),$inout0 # load input
mov 240($key),$rounds # key->rounds
___
@@ -613,6 +615,7 @@ $code.=<<___;
.align 16
aesni_ecb_encrypt:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0x58(%rsp),%rsp
@@ -985,6 +988,7 @@ $code.=<<___;
.align 16
aesni_ccm64_encrypt_blocks:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0x58(%rsp),%rsp
@@ -1077,6 +1081,7 @@ $code.=<<___;
.align 16
aesni_ccm64_decrypt_blocks:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0x58(%rsp),%rsp
@@ -1203,6 +1208,7 @@ $code.=<<___;
.align 16
aesni_ctr32_encrypt_blocks:
.cfi_startproc
+ endbranch
cmp \$1,$len
jne .Lctr32_bulk
@@ -1775,6 +1781,7 @@ $code.=<<___;
.align 16
aesni_xts_encrypt:
.cfi_startproc
+ endbranch
lea (%rsp),%r11 # frame pointer
.cfi_def_cfa_register %r11
push %rbp
@@ -2258,6 +2265,7 @@ $code.=<<___;
.align 16
aesni_xts_decrypt:
.cfi_startproc
+ endbranch
lea (%rsp),%r11 # frame pointer
.cfi_def_cfa_register %r11
push %rbp
@@ -2783,6 +2791,7 @@ $code.=<<___;
.align 32
aesni_ocb_encrypt:
.cfi_startproc
+ endbranch
lea (%rsp),%rax
push %rbx
.cfi_push %rbx
@@ -3249,6 +3258,7 @@ __ocb_encrypt1:
.align 32
aesni_ocb_decrypt:
.cfi_startproc
+ endbranch
lea (%rsp),%rax
push %rbx
.cfi_push %rbx
@@ -3737,6 +3747,7 @@ $code.=<<___;
.align 16
${PREFIX}_cbc_encrypt:
.cfi_startproc
+ endbranch
test $len,$len # check length
jz .Lcbc_ret
diff --git a/crypto/aes/asm/vpaes-x86_64.pl b/crypto/aes/asm/vpaes-x86_64.pl
index 33d293e623..706d9dac14 100644
--- a/crypto/aes/asm/vpaes-x86_64.pl
+++ b/crypto/aes/asm/vpaes-x86_64.pl
@@ -696,6 +696,7 @@ _vpaes_schedule_mangle:
.align 16
${PREFIX}_set_encrypt_key:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0xb8(%rsp),%rsp
@@ -746,6 +747,7 @@ $code.=<<___;
.align 16
${PREFIX}_set_decrypt_key:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0xb8(%rsp),%rsp
@@ -801,6 +803,7 @@ $code.=<<___;
.align 16
${PREFIX}_encrypt:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0xb8(%rsp),%rsp
@@ -846,6 +849,7 @@ $code.=<<___;
.align 16
${PREFIX}_decrypt:
.cfi_startproc
+ endbranch
___
$code.=<<___ if ($win64);
lea -0xb8(%rsp),%rsp
@@ -897,6 +901,7 @@ $code.=<<___;
.align 16
${PREFIX}_cbc_encrypt:
.cfi_startproc
+ endbranch
xchg $key,$len
___
($len,$key)=($key,$len);
diff --git a/crypto/async/arch/async_posix.c b/crypto/async/arch/async_posix.c
index 95678d4fa6..dfc45bfa05 100644
--- a/crypto/async/arch/async_posix.c
+++ b/crypto/async/arch/async_posix.c
@@ -34,7 +34,9 @@ void async_local_cleanup(void)
int async_fibre_makecontext(async_fibre *fibre)
{
+#ifndef USE_SWAPCONTEXT
fibre->env_init = 0;
+#endif
if (getcontext(&fibre->fibre) == 0) {
fibre->fibre.uc_stack.ss_sp = OPENSSL_malloc(STACKSIZE);
if (fibre->fibre.uc_stack.ss_sp != NULL) {
diff --git a/crypto/async/arch/async_posix.h b/crypto/async/arch/async_posix.h
index 873c0316dd..db42a01880 100644
--- a/crypto/async/arch/async_posix.h
+++ b/crypto/async/arch/async_posix.h
@@ -25,17 +25,33 @@
# define ASYNC_POSIX
# define ASYNC_ARCH
+# ifdef __CET__
+/*
+ * When Intel CET is enabled, makecontext will create a different
+ * shadow stack for each context. async_fibre_swapcontext cannot
+ * use _longjmp. It must call swapcontext to swap shadow stack as
+ * well as normal stack.
+ */
+# define USE_SWAPCONTEXT
+# endif
# include <ucontext.h>
-# include <setjmp.h>
+# ifndef USE_SWAPCONTEXT
+# include <setjmp.h>
+# endif
typedef struct async_fibre_st {
ucontext_t fibre;
+# ifndef USE_SWAPCONTEXT
jmp_buf env;
int env_init;
+# endif
} async_fibre;
static ossl_inline int async_fibre_swapcontext(async_fibre *o, async_fibre *n, int r)
{
+# ifdef USE_SWAPCONTEXT
+ swapcontext(&o->fibre, &n->fibre);
+# else
o->env_init = 1;
if (!r || !_setjmp(o->env)) {
@@ -44,6 +60,7 @@ static ossl_inline int async_fibre_swapcontext(async_fibre *o, async_fibre *n, i
else
setcontext(&n->fibre);
}
+# endif
return 1;
}
diff --git a/crypto/camellia/asm/cmll-x86_64.pl b/crypto/camellia/asm/cmll-x86_64.pl
index ff7bf12f3b..493ef3330d 100644
--- a/crypto/camellia/asm/cmll-x86_64.pl
+++ b/crypto/camellia/asm/cmll-x86_64.pl
@@ -685,6 +685,7 @@ $code.=<<___;
.align 16
Camellia_cbc_encrypt:
.cfi_startproc
+ endbranch
cmp \$0,%rdx
je .Lcbc_abort
push %rbx
diff --git a/crypto/modes/asm/ghash-x86_64.pl b/crypto/modes/asm/ghash-x86_64.pl
index 1e5221005d..fb682c3cbc 100644
--- a/crypto/modes/asm/ghash-x86_64.pl
+++ b/crypto/modes/asm/ghash-x86_64.pl
@@ -239,6 +239,7 @@ $code=<<___;
.align 16
gcm_gmult_4bit:
.cfi_startproc
+ endbranch
push %rbx
.cfi_push %rbx
push %rbp # %rbp and others are pushed exclusively in
@@ -286,6 +287,7 @@ $code.=<<___;
.align 16
gcm_ghash_4bit:
.cfi_startproc
+ endbranch
push %rbx
.cfi_push %rbx
push %rbp
@@ -612,6 +614,7 @@ $code.=<<___;
.align 16
gcm_gmult_clmul:
.cfi_startproc
+ endbranch
.L_gmult_clmul:
movdqu ($Xip),$Xi
movdqa .Lbswap_mask(%rip),$T3
@@ -663,6 +666,7 @@ $code.=<<___;
.align 32
gcm_ghash_clmul:
.cfi_startproc
+ endbranch
.L_ghash_clmul:
___
$code.=<<___ if ($win64);
@@ -1166,6 +1170,7 @@ $code.=<<___;
.align 32
gcm_gmult_avx:
.cfi_startproc
+ endbranch
jmp .L_gmult_clmul
.cfi_endproc
.size gcm_gmult_avx,.-gcm_gmult_avx
@@ -1177,6 +1182,7 @@ $code.=<<___;
.align 32
gcm_ghash_avx:
.cfi_startproc
+ endbranch
___
if ($avx) {
my ($Xip,$Htbl,$inp,$len)=@_4args;
diff --git a/crypto/perlasm/cbc.pl b/crypto/perlasm/cbc.pl
index 01bafe457d..17b01d22eb 100644
--- a/crypto/perlasm/cbc.pl
+++ b/crypto/perlasm/cbc.pl
@@ -165,21 +165,28 @@ sub cbc
&jmp_ptr($count);
&set_label("ej7");
+ &endbranch()
&movb(&HB("edx"), &BP(6,$in,"",0));
&shl("edx",8);
&set_label("ej6");
+ &endbranch()
&movb(&HB("edx"), &BP(5,$in,"",0));
&set_label("ej5");
+ &endbranch()
&movb(&LB("edx"), &BP(4,$in,"",0));
&set_label("ej4");
+ &endbranch()
&mov("ecx", &DWP(0,$in,"",0));
&jmp(&label("ejend"));
&set_label("ej3");
+ &endbranch()
&movb(&HB("ecx"), &BP(2,$in,"",0));
&shl("ecx",8);
&set_label("ej2");
+ &endbranch()
&movb(&HB("ecx"), &BP(1,$in,"",0));
&set_label("ej1");
+ &endbranch()
&movb(&LB("ecx"), &BP(0,$in,"",0));
&set_label("ejend");
diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
index 29a0eacfd5..7ffba4c450 100755
--- a/crypto/perlasm/x86_64-xlate.pl
+++ b/crypto/perlasm/x86_64-xlate.pl
@@ -101,6 +101,33 @@ elsif (!$gas)
$decor="\$L\$";
}
+my $cet_property;
+if ($flavour =~ /elf/) {
+ # Always generate .note.gnu.property section for ELF outputs to
+ # mark Intel CET support since all input files must be marked
+ # with Intel CET support in order for linker to mark output with
+ # Intel CET support.
+ my $p2align=3; $p2align=2 if ($flavour eq "elf32");
+ $cet_property = <<_____;
+ .section ".note.gnu.property", "a"
+ .p2align $p2align
+ .long 1f - 0f
+ .long 4f - 1f
+ .long 5
+0:
+ .asciz "GNU"
+1:
+ .p2align $p2align
+ .long 0xc0000002
+ .long 3f - 2f
+2:
+ .long 3
+3:
+ .p2align $p2align
+4:
+_____
+}
+
my $current_segment;
my $current_function;
my %globals;
@@ -1213,6 +1240,7 @@ while(defined(my $line=<>)) {
print $line,"\n";
}
+print "$cet_property" if ($cet_property);
print "\n$current_segment\tENDS\n" if ($current_segment && $masm);
print "END\n" if ($masm);
diff --git a/crypto/perlasm/x86gas.pl b/crypto/perlasm/x86gas.pl
index 5c7ea3880e..58ea922256 100644
--- a/crypto/perlasm/x86gas.pl
+++ b/crypto/perlasm/x86gas.pl
@@ -124,6 +124,7 @@ sub ::function_begin_B
push(@out,".align\t$align\n");
push(@out,"$func:\n");
push(@out,"$begin:\n") if ($global);
+ &::endbranch();
$::stack=4;
}
@@ -172,6 +173,26 @@ sub ::file_end
else { push (@out,"$tmp\n"); }
}
push(@out,$initseg) if ($initseg);
+ if ($::elf) {
+ push(@out,"
+ .section \".note.gnu.property\", \"a\"
+ .p2align 2
+ .long 1f - 0f
+ .long 4f - 1f
+ .long 5
+0:
+ .asciz \"GNU\"
+1:
+ .p2align 2
+ .long 0xc0000002
+ .long 3f - 2f
+2:
+ .long 3
+3:
+ .p2align 2
+4:
+");
+ }
}
sub ::data_byte { push(@out,".byte\t".join(',',@_)."\n"); }
diff --git a/crypto/poly1305/asm/poly1305-x86_64.pl b/crypto/poly1305/asm/poly1305-x86_64.pl
index c3b7ce3658..92deae2185 100755
--- a/crypto/poly1305/asm/poly1305-x86_64.pl
+++ b/crypto/poly1305/asm/poly1305-x86_64.pl
@@ -2806,6 +2806,7 @@ $code.=<<___;
.align 32
poly1305_blocks_vpmadd52:
.cfi_startproc
+ endbranch
shr \$4,$len
jz .Lno_data_vpmadd52 # too short
@@ -3739,6 +3740,7 @@ $code.=<<___;
.align 32
poly1305_emit_base2_44:
.cfi_startproc
+ endbranch
mov 0($ctx),%r8 # load hash value
mov 8($ctx),%r9
mov 16($ctx),%r10
diff --git a/crypto/rc4/asm/rc4-x86_64.pl b/crypto/rc4/asm/rc4-x86_64.pl
index 32d842c59f..683103a172 100755
--- a/crypto/rc4/asm/rc4-x86_64.pl
+++ b/crypto/rc4/asm/rc4-x86_64.pl
@@ -140,6 +140,7 @@ $code=<<___;
.align 16
RC4:
.cfi_startproc
+ endbranch
or $len,$len
jne .Lentry
ret
@@ -455,6 +456,7 @@ $code.=<<___;
.align 16
RC4_set_key:
.cfi_startproc
+ endbranch
lea 8($dat),$dat
lea ($inp,$len),$inp
neg $len
@@ -529,6 +531,7 @@ RC4_set_key:
.align 16
RC4_options:
.cfi_startproc
+ endbranch
lea .Lopts(%rip),%rax
mov OPENSSL_ia32cap_P(%rip),%edx
bt \$20,%edx
diff --git a/crypto/x86_64cpuid.pl b/crypto/x86_64cpuid.pl
index b9d8f73222..0e7e46bea3 100644
--- a/crypto/x86_64cpuid.pl
+++ b/crypto/x86_64cpuid.pl
@@ -40,6 +40,7 @@ print<<___;
.align 16
OPENSSL_atomic_add:
.cfi_startproc
+ endbranch
movl ($arg1),%eax
.Lspin: leaq ($arg2,%rax),%r8
.byte 0xf0 # lock
@@ -56,6 +57,7 @@ OPENSSL_atomic_add:
.align 16
OPENSSL_rdtsc:
.cfi_startproc
+ endbranch
rdtsc
shl \$32,%rdx
or %rdx,%rax
@@ -68,6 +70,7 @@ OPENSSL_rdtsc:
.align 16
OPENSSL_ia32_cpuid:
.cfi_startproc
+ endbranch
mov %rbx,%r8 # save %rbx
.cfi_register %rbx,%r8
@@ -237,6 +240,7 @@ OPENSSL_ia32_cpuid:
.align 16
OPENSSL_cleanse:
.cfi_startproc
+ endbranch
xor %rax,%rax
cmp \$15,$arg2
jae .Lot
@@ -274,6 +278,7 @@ OPENSSL_cleanse:
.align 16
CRYPTO_memcmp:
.cfi_startproc
+ endbranch
xor %rax,%rax
xor %r10,%r10
cmp \$0,$arg3
@@ -312,6 +317,7 @@ print<<___ if (!$win64);
.align 16
OPENSSL_wipe_cpu:
.cfi_startproc
+ endbranch
pxor %xmm0,%xmm0
pxor %xmm1,%xmm1
pxor %xmm2,%xmm2
@@ -376,6 +382,7 @@ print<<___;
.align 16
OPENSSL_instrument_bus:
.cfi_startproc
+ endbranch
mov $arg1,$out # tribute to Win64
mov $arg2,$cnt
mov $arg2,$max
@@ -410,6 +417,7 @@ OPENSSL_instrument_bus:
.align 16
OPENSSL_instrument_bus2:
.cfi_startproc
+ endbranch
mov $arg1,$out # tribute to Win64
mov $arg2,$cnt
mov $arg3,$max
@@ -465,6 +473,7 @@ print<<___;
.align 16
OPENSSL_ia32_${rdop}_bytes:
.cfi_startproc
+ endbranch
xor %rax, %rax # return value
cmp \$0,$arg2
je .Ldone_${rdop}_bytes
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