Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Eduard Zingerman | 821 | 99.88% | 1 | 50.00% |
Jiong Wang | 1 | 0.12% | 1 | 50.00% |
Total | 822 | 2 |
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673
// SPDX-License-Identifier: GPL-2.0 /* Converted from tools/testing/selftests/bpf/verifier/subreg.c */ #include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include "bpf_misc.h" /* This file contains sub-register zero extension checks for insns defining * sub-registers, meaning: * - All insns under BPF_ALU class. Their BPF_ALU32 variants or narrow width * forms (BPF_END) could define sub-registers. * - Narrow direct loads, BPF_B/H/W | BPF_LDX. * - BPF_LD is not exposed to JIT back-ends, so no need for testing. * * "get_prandom_u32" is used to initialize low 32-bit of some registers to * prevent potential optimizations done by verifier or JIT back-ends which could * optimize register back into constant when range info shows one register is a * constant. */ SEC("socket") __description("add32 reg zero extend check") __success __success_unpriv __retval(0) __naked void add32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = 0x100000000 ll; \ w0 += w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("add32 imm zero extend check") __success __success_unpriv __retval(0) __naked void add32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ /* An insn could have no effect on the low 32-bit, for example:\ * a = a + 0 \ * a = a | 0 \ * a = a & -1 \ * But, they should still zero high 32-bit. \ */ \ w0 += 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 += -2; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("sub32 reg zero extend check") __success __success_unpriv __retval(0) __naked void sub32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = 0x1ffffffff ll; \ w0 -= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("sub32 imm zero extend check") __success __success_unpriv __retval(0) __naked void sub32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 -= 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 -= 1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("mul32 reg zero extend check") __success __success_unpriv __retval(0) __naked void mul32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = 0x100000001 ll; \ w0 *= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("mul32 imm zero extend check") __success __success_unpriv __retval(0) __naked void mul32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 *= 1; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 *= -1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("div32 reg zero extend check") __success __success_unpriv __retval(0) __naked void div32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = -1; \ w0 /= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("div32 imm zero extend check") __success __success_unpriv __retval(0) __naked void div32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 /= 1; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 /= 2; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("or32 reg zero extend check") __success __success_unpriv __retval(0) __naked void or32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = 0x100000001 ll; \ w0 |= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("or32 imm zero extend check") __success __success_unpriv __retval(0) __naked void or32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 |= 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 |= 1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("and32 reg zero extend check") __success __success_unpriv __retval(0) __naked void and32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x100000000 ll; \ r1 |= r0; \ r0 = 0x1ffffffff ll; \ w0 &= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("and32 imm zero extend check") __success __success_unpriv __retval(0) __naked void and32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 &= -1; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 &= -2; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("lsh32 reg zero extend check") __success __success_unpriv __retval(0) __naked void lsh32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x100000000 ll; \ r0 |= r1; \ r1 = 1; \ w0 <<= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("lsh32 imm zero extend check") __success __success_unpriv __retval(0) __naked void lsh32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 <<= 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 <<= 1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("rsh32 reg zero extend check") __success __success_unpriv __retval(0) __naked void rsh32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ r1 = 1; \ w0 >>= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("rsh32 imm zero extend check") __success __success_unpriv __retval(0) __naked void rsh32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 >>= 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 >>= 1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("neg32 reg zero extend check") __success __success_unpriv __retval(0) __naked void neg32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 = -w0; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("mod32 reg zero extend check") __success __success_unpriv __retval(0) __naked void mod32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = -1; \ w0 %%= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("mod32 imm zero extend check") __success __success_unpriv __retval(0) __naked void mod32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 %%= 1; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 %%= 2; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("xor32 reg zero extend check") __success __success_unpriv __retval(0) __naked void xor32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = r0; \ r0 = 0x100000000 ll; \ w0 ^= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("xor32 imm zero extend check") __success __success_unpriv __retval(0) __naked void xor32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 ^= 1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("mov32 reg zero extend check") __success __success_unpriv __retval(0) __naked void mov32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x100000000 ll; \ r1 |= r0; \ r0 = 0x100000000 ll; \ w0 = w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("mov32 imm zero extend check") __success __success_unpriv __retval(0) __naked void mov32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 = 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 = 1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("arsh32 reg zero extend check") __success __success_unpriv __retval(0) __naked void arsh32_reg_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ r1 = 1; \ w0 s>>= w1; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("arsh32 imm zero extend check") __success __success_unpriv __retval(0) __naked void arsh32_imm_zero_extend_check(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 s>>= 0; \ r0 >>= 32; \ r6 = r0; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ w0 s>>= 1; \ r0 >>= 32; \ r0 |= r6; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("end16 (to_le) reg zero extend check") __success __success_unpriv __retval(0) __naked void le_reg_zero_extend_check_1(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r6 = r0; \ r6 <<= 32; \ call %[bpf_get_prandom_u32]; \ r0 |= r6; \ r0 = le16 r0; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("end32 (to_le) reg zero extend check") __success __success_unpriv __retval(0) __naked void le_reg_zero_extend_check_2(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r6 = r0; \ r6 <<= 32; \ call %[bpf_get_prandom_u32]; \ r0 |= r6; \ r0 = le32 r0; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("end16 (to_be) reg zero extend check") __success __success_unpriv __retval(0) __naked void be_reg_zero_extend_check_1(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r6 = r0; \ r6 <<= 32; \ call %[bpf_get_prandom_u32]; \ r0 |= r6; \ r0 = be16 r0; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("end32 (to_be) reg zero extend check") __success __success_unpriv __retval(0) __naked void be_reg_zero_extend_check_2(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r6 = r0; \ r6 <<= 32; \ call %[bpf_get_prandom_u32]; \ r0 |= r6; \ r0 = be32 r0; \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("ldx_b zero extend check") __success __success_unpriv __retval(0) __naked void ldx_b_zero_extend_check(void) { asm volatile (" \ r6 = r10; \ r6 += -4; \ r7 = 0xfaceb00c; \ *(u32*)(r6 + 0) = r7; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ r0 = *(u8*)(r6 + 0); \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("ldx_h zero extend check") __success __success_unpriv __retval(0) __naked void ldx_h_zero_extend_check(void) { asm volatile (" \ r6 = r10; \ r6 += -4; \ r7 = 0xfaceb00c; \ *(u32*)(r6 + 0) = r7; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ r0 = *(u16*)(r6 + 0); \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("ldx_w zero extend check") __success __success_unpriv __retval(0) __naked void ldx_w_zero_extend_check(void) { asm volatile (" \ r6 = r10; \ r6 += -4; \ r7 = 0xfaceb00c; \ *(u32*)(r6 + 0) = r7; \ call %[bpf_get_prandom_u32]; \ r1 = 0x1000000000 ll; \ r0 |= r1; \ r0 = *(u32*)(r6 + 0); \ r0 >>= 32; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } char _license[] SEC("license") = "GPL";
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1