Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Yonghong Song | 446 | 92.34% | 3 | 37.50% |
Pu Lehui | 12 | 2.48% | 1 | 12.50% |
Xu Kuohai | 7 | 1.45% | 1 | 12.50% |
Ilya Leoshkevich | 6 | 1.24% | 1 | 12.50% |
Puranjay Mohan | 6 | 1.24% | 1 | 12.50% |
Hengqi Chen | 6 | 1.24% | 1 | 12.50% |
Total | 483 | 8 |
// SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> #include <bpf/bpf_helpers.h> #include "bpf_misc.h" #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \ defined(__TARGET_ARCH_loongarch)) && \ __clang_major__ >= 18 SEC("socket") __description("MOV32SX, S8") __success __success_unpriv __retval(0x23) __naked void mov32sx_s8(void) { asm volatile (" \ w0 = 0xff23; \ w0 = (s8)w0; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOV32SX, S16") __success __success_unpriv __retval(0xFFFFff23) __naked void mov32sx_s16(void) { asm volatile (" \ w0 = 0xff23; \ w0 = (s16)w0; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOV64SX, S8") __success __success_unpriv __retval(-2) __naked void mov64sx_s8(void) { asm volatile (" \ r0 = 0x1fe; \ r0 = (s8)r0; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOV64SX, S16") __success __success_unpriv __retval(0xf23) __naked void mov64sx_s16(void) { asm volatile (" \ r0 = 0xf0f23; \ r0 = (s16)r0; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOV64SX, S32") __success __success_unpriv __retval(-1) __naked void mov64sx_s32(void) { asm volatile (" \ r0 = 0xfffffffe; \ r0 = (s32)r0; \ r0 >>= 1; \ exit; \ " ::: __clobber_all); } SEC("socket") __description("MOV32SX, S8, range_check") __success __success_unpriv __retval(1) __naked void mov32sx_s8_range(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ w1 = (s8)w0; \ /* w1 with s8 range */ \ if w1 s> 0x7f goto l0_%=; \ if w1 s< -0x80 goto l0_%=; \ r0 = 1; \ l1_%=: \ exit; \ l0_%=: \ r0 = 2; \ goto l1_%=; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV32SX, S16, range_check") __success __success_unpriv __retval(1) __naked void mov32sx_s16_range(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ w1 = (s16)w0; \ /* w1 with s16 range */ \ if w1 s> 0x7fff goto l0_%=; \ if w1 s< -0x80ff goto l0_%=; \ r0 = 1; \ l1_%=: \ exit; \ l0_%=: \ r0 = 2; \ goto l1_%=; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV32SX, S16, range_check 2") __success __success_unpriv __retval(1) __naked void mov32sx_s16_range_2(void) { asm volatile (" \ r1 = 65535; \ w2 = (s16)w1; \ r2 >>= 1; \ if r2 != 0x7fffFFFF goto l0_%=; \ r0 = 1; \ l1_%=: \ exit; \ l0_%=: \ r0 = 0; \ goto l1_%=; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV64SX, S8, range_check") __success __success_unpriv __retval(1) __naked void mov64sx_s8_range(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = (s8)r0; \ /* r1 with s8 range */ \ if r1 s> 0x7f goto l0_%=; \ if r1 s< -0x80 goto l0_%=; \ r0 = 1; \ l1_%=: \ exit; \ l0_%=: \ r0 = 2; \ goto l1_%=; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV64SX, S16, range_check") __success __success_unpriv __retval(1) __naked void mov64sx_s16_range(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = (s16)r0; \ /* r1 with s16 range */ \ if r1 s> 0x7fff goto l0_%=; \ if r1 s< -0x8000 goto l0_%=; \ r0 = 1; \ l1_%=: \ exit; \ l0_%=: \ r0 = 2; \ goto l1_%=; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV64SX, S32, range_check") __success __success_unpriv __retval(1) __naked void mov64sx_s32_range(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r1 = (s32)r0; \ /* r1 with s32 range */ \ if r1 s> 0x7fffffff goto l0_%=; \ if r1 s< -0x80000000 goto l0_%=; \ r0 = 1; \ l1_%=: \ exit; \ l0_%=: \ r0 = 2; \ goto l1_%=; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV64SX, S16, R10 Sign Extension") __failure __msg("R1 type=scalar expected=fp, pkt, pkt_meta, map_key, map_value, mem, ringbuf_mem, buf, trusted_ptr_") __failure_unpriv __msg_unpriv("R10 sign-extension part of pointer") __naked void mov64sx_s16_r10(void) { asm volatile (" \ r1 = 553656332; \ *(u32 *)(r10 - 8) = r1; \ r1 = (s16)r10; \ r1 += -8; \ r2 = 3; \ if r2 <= r1 goto l0_%=; \ l0_%=: \ call %[bpf_trace_printk]; \ r0 = 0; \ exit; \ " : : __imm(bpf_trace_printk) : __clobber_all); } SEC("socket") __description("MOV32SX, S8, var_off u32_max") __failure __msg("infinite loop detected") __failure_unpriv __msg_unpriv("back-edge from insn 2 to 0") __naked void mov64sx_s32_varoff_1(void) { asm volatile (" \ l0_%=: \ r3 = *(u8 *)(r10 -387); \ w7 = (s8)w3; \ if w7 >= 0x2533823b goto l0_%=; \ w0 = 0; \ exit; \ " : : : __clobber_all); } SEC("socket") __description("MOV32SX, S8, var_off not u32_max, positive after s8 extension") __success __retval(0) __failure_unpriv __msg_unpriv("frame pointer is read only") __naked void mov64sx_s32_varoff_2(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r3 = r0; \ r3 &= 0xf; \ w7 = (s8)w3; \ if w7 s>= 16 goto l0_%=; \ w0 = 0; \ exit; \ l0_%=: \ r10 = 1; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } SEC("socket") __description("MOV32SX, S8, var_off not u32_max, negative after s8 extension") __success __retval(0) __failure_unpriv __msg_unpriv("frame pointer is read only") __naked void mov64sx_s32_varoff_3(void) { asm volatile (" \ call %[bpf_get_prandom_u32]; \ r3 = r0; \ r3 &= 0xf; \ r3 |= 0x80; \ w7 = (s8)w3; \ if w7 s>= -5 goto l0_%=; \ w0 = 0; \ exit; \ l0_%=: \ r10 = 1; \ exit; \ " : : __imm(bpf_get_prandom_u32) : __clobber_all); } #else SEC("socket") __description("cpuv4 is not supported by compiler or jit, use a dummy test") __success int dummy_test(void) { return 0; } #endif char _license[] SEC("license") = "GPL";
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