summaryrefslogtreecommitdiff
path: root/arch/riscv/net/bpf_jit_comp64.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/riscv/net/bpf_jit_comp64.c')
-rw-r--r--arch/riscv/net/bpf_jit_comp64.c229
1 files changed, 89 insertions, 140 deletions
diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c
index 719a97e7edb2..aac190085472 100644
--- a/arch/riscv/net/bpf_jit_comp64.c
+++ b/arch/riscv/net/bpf_jit_comp64.c
@@ -11,6 +11,7 @@
#include <linux/memory.h>
#include <linux/stop_machine.h>
#include <asm/patch.h>
+#include <asm/cfi.h>
#include "bpf_jit.h"
#define RV_FENTRY_NINSNS 2
@@ -141,6 +142,19 @@ static bool in_auipc_jalr_range(s64 val)
val < ((1L << 31) - (1L << 11));
}
+/* Modify rd pointer to alternate reg to avoid corrupting original reg */
+static void emit_sextw_alt(u8 *rd, u8 ra, struct rv_jit_context *ctx)
+{
+ emit_sextw(ra, *rd, ctx);
+ *rd = ra;
+}
+
+static void emit_zextw_alt(u8 *rd, u8 ra, struct rv_jit_context *ctx)
+{
+ emit_zextw(ra, *rd, ctx);
+ *rd = ra;
+}
+
/* Emit fixed-length instructions for address */
static int emit_addr(u8 rd, u64 addr, bool extra_pass, struct rv_jit_context *ctx)
{
@@ -326,12 +340,6 @@ static void emit_branch(u8 cond, u8 rd, u8 rs, int rvoff,
emit(rv_jalr(RV_REG_ZERO, RV_REG_T1, lower), ctx);
}
-static void emit_zext_32(u8 reg, struct rv_jit_context *ctx)
-{
- emit_slli(reg, reg, 32, ctx);
- emit_srli(reg, reg, 32, ctx);
-}
-
static int emit_bpf_tail_call(int insn, struct rv_jit_context *ctx)
{
int tc_ninsn, off, start_insn = ctx->ninsns;
@@ -346,7 +354,7 @@ static int emit_bpf_tail_call(int insn, struct rv_jit_context *ctx)
*/
tc_ninsn = insn ? ctx->offset[insn] - ctx->offset[insn - 1] :
ctx->offset[0];
- emit_zext_32(RV_REG_A2, ctx);
+ emit_zextw(RV_REG_A2, RV_REG_A2, ctx);
off = offsetof(struct bpf_array, map.max_entries);
if (is_12b_check(off, insn))
@@ -405,38 +413,6 @@ static void init_regs(u8 *rd, u8 *rs, const struct bpf_insn *insn,
*rs = bpf_to_rv_reg(insn->src_reg, ctx);
}
-static void emit_zext_32_rd_rs(u8 *rd, u8 *rs, struct rv_jit_context *ctx)
-{
- emit_mv(RV_REG_T2, *rd, ctx);
- emit_zext_32(RV_REG_T2, ctx);
- emit_mv(RV_REG_T1, *rs, ctx);
- emit_zext_32(RV_REG_T1, ctx);
- *rd = RV_REG_T2;
- *rs = RV_REG_T1;
-}
-
-static void emit_sext_32_rd_rs(u8 *rd, u8 *rs, struct rv_jit_context *ctx)
-{
- emit_addiw(RV_REG_T2, *rd, 0, ctx);
- emit_addiw(RV_REG_T1, *rs, 0, ctx);
- *rd = RV_REG_T2;
- *rs = RV_REG_T1;
-}
-
-static void emit_zext_32_rd_t1(u8 *rd, struct rv_jit_context *ctx)
-{
- emit_mv(RV_REG_T2, *rd, ctx);
- emit_zext_32(RV_REG_T2, ctx);
- emit_zext_32(RV_REG_T1, ctx);
- *rd = RV_REG_T2;
-}
-
-static void emit_sext_32_rd(u8 *rd, struct rv_jit_context *ctx)
-{
- emit_addiw(RV_REG_T2, *rd, 0, ctx);
- *rd = RV_REG_T2;
-}
-
static int emit_jump_and_link(u8 rd, s64 rvoff, bool fixed_addr,
struct rv_jit_context *ctx)
{
@@ -480,6 +456,12 @@ static int emit_call(u64 addr, bool fixed_addr, struct rv_jit_context *ctx)
return emit_jump_and_link(RV_REG_RA, off, fixed_addr, ctx);
}
+static inline void emit_kcfi(u32 hash, struct rv_jit_context *ctx)
+{
+ if (IS_ENABLED(CONFIG_CFI_CLANG))
+ emit(hash, ctx);
+}
+
static void emit_atomic(u8 rd, u8 rs, s16 off, s32 imm, bool is64,
struct rv_jit_context *ctx)
{
@@ -519,32 +501,32 @@ static void emit_atomic(u8 rd, u8 rs, s16 off, s32 imm, bool is64,
emit(is64 ? rv_amoadd_d(rs, rs, rd, 0, 0) :
rv_amoadd_w(rs, rs, rd, 0, 0), ctx);
if (!is64)
- emit_zext_32(rs, ctx);
+ emit_zextw(rs, rs, ctx);
break;
case BPF_AND | BPF_FETCH:
emit(is64 ? rv_amoand_d(rs, rs, rd, 0, 0) :
rv_amoand_w(rs, rs, rd, 0, 0), ctx);
if (!is64)
- emit_zext_32(rs, ctx);
+ emit_zextw(rs, rs, ctx);
break;
case BPF_OR | BPF_FETCH:
emit(is64 ? rv_amoor_d(rs, rs, rd, 0, 0) :
rv_amoor_w(rs, rs, rd, 0, 0), ctx);
if (!is64)
- emit_zext_32(rs, ctx);
+ emit_zextw(rs, rs, ctx);
break;
case BPF_XOR | BPF_FETCH:
emit(is64 ? rv_amoxor_d(rs, rs, rd, 0, 0) :
rv_amoxor_w(rs, rs, rd, 0, 0), ctx);
if (!is64)
- emit_zext_32(rs, ctx);
+ emit_zextw(rs, rs, ctx);
break;
/* src_reg = atomic_xchg(dst_reg + off16, src_reg); */
case BPF_XCHG:
emit(is64 ? rv_amoswap_d(rs, rs, rd, 0, 0) :
rv_amoswap_w(rs, rs, rd, 0, 0), ctx);
if (!is64)
- emit_zext_32(rs, ctx);
+ emit_zextw(rs, rs, ctx);
break;
/* r0 = atomic_cmpxchg(dst_reg + off16, r0, src_reg); */
case BPF_CMPXCHG:
@@ -894,6 +876,8 @@ static int __arch_prepare_bpf_trampoline(struct bpf_tramp_image *im,
emit_sd(RV_REG_SP, stack_size - 16, RV_REG_FP, ctx);
emit_addi(RV_REG_FP, RV_REG_SP, stack_size, ctx);
} else {
+ /* emit kcfi hash */
+ emit_kcfi(cfi_get_func_hash(func_addr), ctx);
/* For the trampoline called directly, just handle
* the frame of trampoline.
*/
@@ -1091,7 +1075,7 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
case BPF_ALU64 | BPF_MOV | BPF_X:
if (imm == 1) {
/* Special mov32 for zext */
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
}
switch (insn->off) {
@@ -1099,16 +1083,17 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
emit_mv(rd, rs, ctx);
break;
case 8:
+ emit_sextb(rd, rs, ctx);
+ break;
case 16:
- emit_slli(RV_REG_T1, rs, 64 - insn->off, ctx);
- emit_srai(rd, RV_REG_T1, 64 - insn->off, ctx);
+ emit_sexth(rd, rs, ctx);
break;
case 32:
- emit_addiw(rd, rs, 0, ctx);
+ emit_sextw(rd, rs, ctx);
break;
}
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
/* dst = dst OP src */
@@ -1116,7 +1101,7 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
case BPF_ALU64 | BPF_ADD | BPF_X:
emit_add(rd, rd, rs, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_SUB | BPF_X:
case BPF_ALU64 | BPF_SUB | BPF_X:
@@ -1126,31 +1111,31 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
emit_subw(rd, rd, rs, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_AND | BPF_X:
case BPF_ALU64 | BPF_AND | BPF_X:
emit_and(rd, rd, rs, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_OR | BPF_X:
case BPF_ALU64 | BPF_OR | BPF_X:
emit_or(rd, rd, rs, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_XOR | BPF_X:
case BPF_ALU64 | BPF_XOR | BPF_X:
emit_xor(rd, rd, rs, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_MUL | BPF_X:
case BPF_ALU64 | BPF_MUL | BPF_X:
emit(is64 ? rv_mul(rd, rd, rs) : rv_mulw(rd, rd, rs), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_DIV | BPF_X:
case BPF_ALU64 | BPF_DIV | BPF_X:
@@ -1159,7 +1144,7 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
else
emit(is64 ? rv_divu(rd, rd, rs) : rv_divuw(rd, rd, rs), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_MOD | BPF_X:
case BPF_ALU64 | BPF_MOD | BPF_X:
@@ -1168,25 +1153,25 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
else
emit(is64 ? rv_remu(rd, rd, rs) : rv_remuw(rd, rd, rs), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_LSH | BPF_X:
case BPF_ALU64 | BPF_LSH | BPF_X:
emit(is64 ? rv_sll(rd, rd, rs) : rv_sllw(rd, rd, rs), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_RSH | BPF_X:
case BPF_ALU64 | BPF_RSH | BPF_X:
emit(is64 ? rv_srl(rd, rd, rs) : rv_srlw(rd, rd, rs), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_ARSH | BPF_X:
case BPF_ALU64 | BPF_ARSH | BPF_X:
emit(is64 ? rv_sra(rd, rd, rs) : rv_sraw(rd, rd, rs), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
/* dst = -dst */
@@ -1194,73 +1179,27 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
case BPF_ALU64 | BPF_NEG:
emit_sub(rd, RV_REG_ZERO, rd, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
/* dst = BSWAP##imm(dst) */
case BPF_ALU | BPF_END | BPF_FROM_LE:
switch (imm) {
case 16:
- emit_slli(rd, rd, 48, ctx);
- emit_srli(rd, rd, 48, ctx);
+ emit_zexth(rd, rd, ctx);
break;
case 32:
if (!aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case 64:
/* Do nothing */
break;
}
break;
-
case BPF_ALU | BPF_END | BPF_FROM_BE:
case BPF_ALU64 | BPF_END | BPF_FROM_LE:
- emit_li(RV_REG_T2, 0, ctx);
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
- if (imm == 16)
- goto out_be;
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
- if (imm == 32)
- goto out_be;
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
-
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
- emit_slli(RV_REG_T2, RV_REG_T2, 8, ctx);
- emit_srli(rd, rd, 8, ctx);
-out_be:
- emit_andi(RV_REG_T1, rd, 0xff, ctx);
- emit_add(RV_REG_T2, RV_REG_T2, RV_REG_T1, ctx);
-
- emit_mv(rd, RV_REG_T2, ctx);
+ emit_bswap(rd, imm, ctx);
break;
/* dst = imm */
@@ -1268,7 +1207,7 @@ out_be:
case BPF_ALU64 | BPF_MOV | BPF_K:
emit_imm(rd, imm, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
/* dst = dst OP imm */
@@ -1281,7 +1220,7 @@ out_be:
emit_add(rd, rd, RV_REG_T1, ctx);
}
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_SUB | BPF_K:
case BPF_ALU64 | BPF_SUB | BPF_K:
@@ -1292,7 +1231,7 @@ out_be:
emit_sub(rd, rd, RV_REG_T1, ctx);
}
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_AND | BPF_K:
case BPF_ALU64 | BPF_AND | BPF_K:
@@ -1303,7 +1242,7 @@ out_be:
emit_and(rd, rd, RV_REG_T1, ctx);
}
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_OR | BPF_K:
case BPF_ALU64 | BPF_OR | BPF_K:
@@ -1314,7 +1253,7 @@ out_be:
emit_or(rd, rd, RV_REG_T1, ctx);
}
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_XOR | BPF_K:
case BPF_ALU64 | BPF_XOR | BPF_K:
@@ -1325,7 +1264,7 @@ out_be:
emit_xor(rd, rd, RV_REG_T1, ctx);
}
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_MUL | BPF_K:
case BPF_ALU64 | BPF_MUL | BPF_K:
@@ -1333,7 +1272,7 @@ out_be:
emit(is64 ? rv_mul(rd, rd, RV_REG_T1) :
rv_mulw(rd, rd, RV_REG_T1), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_DIV | BPF_K:
case BPF_ALU64 | BPF_DIV | BPF_K:
@@ -1345,7 +1284,7 @@ out_be:
emit(is64 ? rv_divu(rd, rd, RV_REG_T1) :
rv_divuw(rd, rd, RV_REG_T1), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_MOD | BPF_K:
case BPF_ALU64 | BPF_MOD | BPF_K:
@@ -1357,14 +1296,14 @@ out_be:
emit(is64 ? rv_remu(rd, rd, RV_REG_T1) :
rv_remuw(rd, rd, RV_REG_T1), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_LSH | BPF_K:
case BPF_ALU64 | BPF_LSH | BPF_K:
emit_slli(rd, rd, imm, ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_RSH | BPF_K:
case BPF_ALU64 | BPF_RSH | BPF_K:
@@ -1374,7 +1313,7 @@ out_be:
emit(rv_srliw(rd, rd, imm), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
case BPF_ALU | BPF_ARSH | BPF_K:
case BPF_ALU64 | BPF_ARSH | BPF_K:
@@ -1384,7 +1323,7 @@ out_be:
emit(rv_sraiw(rd, rd, imm), ctx);
if (!is64 && !aux->verifier_zext)
- emit_zext_32(rd, ctx);
+ emit_zextw(rd, rd, ctx);
break;
/* JUMP off */
@@ -1425,10 +1364,13 @@ out_be:
rvoff = rv_offset(i, off, ctx);
if (!is64) {
s = ctx->ninsns;
- if (is_signed_bpf_cond(BPF_OP(code)))
- emit_sext_32_rd_rs(&rd, &rs, ctx);
- else
- emit_zext_32_rd_rs(&rd, &rs, ctx);
+ if (is_signed_bpf_cond(BPF_OP(code))) {
+ emit_sextw_alt(&rs, RV_REG_T1, ctx);
+ emit_sextw_alt(&rd, RV_REG_T2, ctx);
+ } else {
+ emit_zextw_alt(&rs, RV_REG_T1, ctx);
+ emit_zextw_alt(&rd, RV_REG_T2, ctx);
+ }
e = ctx->ninsns;
/* Adjust for extra insns */
@@ -1439,8 +1381,7 @@ out_be:
/* Adjust for and */
rvoff -= 4;
emit_and(RV_REG_T1, rd, rs, ctx);
- emit_branch(BPF_JNE, RV_REG_T1, RV_REG_ZERO, rvoff,
- ctx);
+ emit_branch(BPF_JNE, RV_REG_T1, RV_REG_ZERO, rvoff, ctx);
} else {
emit_branch(BPF_OP(code), rd, rs, rvoff, ctx);
}
@@ -1469,18 +1410,18 @@ out_be:
case BPF_JMP32 | BPF_JSLE | BPF_K:
rvoff = rv_offset(i, off, ctx);
s = ctx->ninsns;
- if (imm) {
+ if (imm)
emit_imm(RV_REG_T1, imm, ctx);
- rs = RV_REG_T1;
- } else {
- /* If imm is 0, simply use zero register. */
- rs = RV_REG_ZERO;
- }
+ rs = imm ? RV_REG_T1 : RV_REG_ZERO;
if (!is64) {
- if (is_signed_bpf_cond(BPF_OP(code)))
- emit_sext_32_rd(&rd, ctx);
- else
- emit_zext_32_rd_t1(&rd, ctx);
+ if (is_signed_bpf_cond(BPF_OP(code))) {
+ emit_sextw_alt(&rd, RV_REG_T2, ctx);
+ /* rs has been sign extended */
+ } else {
+ emit_zextw_alt(&rd, RV_REG_T2, ctx);
+ if (imm)
+ emit_zextw(rs, rs, ctx);
+ }
}
e = ctx->ninsns;
@@ -1504,7 +1445,7 @@ out_be:
* as t1 is used only in comparison against zero.
*/
if (!is64 && imm < 0)
- emit_addiw(RV_REG_T1, RV_REG_T1, 0, ctx);
+ emit_sextw(RV_REG_T1, RV_REG_T1, ctx);
e = ctx->ninsns;
rvoff -= ninsns_rvoff(e - s);
emit_branch(BPF_JNE, RV_REG_T1, RV_REG_ZERO, rvoff, ctx);
@@ -1779,7 +1720,7 @@ out_be:
return 0;
}
-void bpf_jit_build_prologue(struct rv_jit_context *ctx)
+void bpf_jit_build_prologue(struct rv_jit_context *ctx, bool is_subprog)
{
int i, stack_adjust = 0, store_offset, bpf_stack_adjust;
@@ -1808,6 +1749,9 @@ void bpf_jit_build_prologue(struct rv_jit_context *ctx)
store_offset = stack_adjust - 8;
+ /* emit kcfi type preamble immediately before the first insn */
+ emit_kcfi(is_subprog ? cfi_bpf_subprog_hash : cfi_bpf_hash, ctx);
+
/* nops reserved for auipc+jalr pair */
for (i = 0; i < RV_FENTRY_NINSNS; i++)
emit(rv_nop(), ctx);
@@ -1874,3 +1818,8 @@ bool bpf_jit_supports_kfunc_call(void)
{
return true;
}
+
+bool bpf_jit_supports_ptr_xchg(void)
+{
+ return true;
+}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-30 12:11:55 +0300