struct rte_ipv4_hdr ip_hdr;
};
+#define DUMMY_MBUF_NUM 2
+
+/* first mbuf in the packet, should always be at offset 0 */
+struct dummy_mbuf {
+ struct rte_mbuf mb[DUMMY_MBUF_NUM];
+ uint8_t buf[DUMMY_MBUF_NUM][RTE_MBUF_DEFAULT_BUF_SIZE];
+};
+
#define TEST_FILL_1 0xDEADBEEF
#define TEST_MUL_1 21
},
};
+/* load mbuf (BPF_ABS/BPF_IND) test-cases */
+static const struct ebpf_insn test_ld_mbuf1_prog[] = {
+
+ /* BPF_ABS/BPF_IND implicitly expect mbuf ptr in R6 */
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_6,
+ .src_reg = EBPF_REG_1,
+ },
+ /* load IPv4 version and IHL */
+ {
+ .code = (BPF_LD | BPF_ABS | BPF_B),
+ .imm = offsetof(struct rte_ipv4_hdr, version_ihl),
+ },
+ /* check IP version */
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_2,
+ .src_reg = EBPF_REG_0,
+ },
+ {
+ .code = (BPF_ALU | BPF_AND | BPF_K),
+ .dst_reg = EBPF_REG_2,
+ .imm = 0xf0,
+ },
+ {
+ .code = (BPF_JMP | BPF_JEQ | BPF_K),
+ .dst_reg = EBPF_REG_2,
+ .imm = IPVERSION << 4,
+ .off = 2,
+ },
+ /* invalid IP version, return 0 */
+ {
+ .code = (EBPF_ALU64 | BPF_XOR | BPF_X),
+ .dst_reg = EBPF_REG_0,
+ .src_reg = EBPF_REG_0,
+ },
+ {
+ .code = (BPF_JMP | EBPF_EXIT),
+ },
+ /* load 3-rd byte of IP data */
+ {
+ .code = (BPF_ALU | BPF_AND | BPF_K),
+ .dst_reg = EBPF_REG_0,
+ .imm = RTE_IPV4_HDR_IHL_MASK,
+ },
+ {
+ .code = (BPF_ALU | BPF_LSH | BPF_K),
+ .dst_reg = EBPF_REG_0,
+ .imm = 2,
+ },
+ {
+ .code = (BPF_LD | BPF_IND | BPF_B),
+ .src_reg = EBPF_REG_0,
+ .imm = 3,
+ },
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_7,
+ .src_reg = EBPF_REG_0,
+ },
+ /* load IPv4 src addr */
+ {
+ .code = (BPF_LD | BPF_ABS | BPF_W),
+ .imm = offsetof(struct rte_ipv4_hdr, src_addr),
+ },
+ {
+ .code = (EBPF_ALU64 | BPF_ADD | BPF_X),
+ .dst_reg = EBPF_REG_7,
+ .src_reg = EBPF_REG_0,
+ },
+ /* load IPv4 total length */
+ {
+ .code = (BPF_LD | BPF_ABS | BPF_H),
+ .imm = offsetof(struct rte_ipv4_hdr, total_length),
+ },
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_8,
+ .src_reg = EBPF_REG_0,
+ },
+ /* load last 4 bytes of IP data */
+ {
+ .code = (BPF_LD | BPF_IND | BPF_W),
+ .src_reg = EBPF_REG_8,
+ .imm = -(int32_t)sizeof(uint32_t),
+ },
+ {
+ .code = (EBPF_ALU64 | BPF_ADD | BPF_X),
+ .dst_reg = EBPF_REG_7,
+ .src_reg = EBPF_REG_0,
+ },
+ /* load 2 bytes from the middle of IP data */
+ {
+ .code = (EBPF_ALU64 | BPF_RSH | BPF_K),
+ .dst_reg = EBPF_REG_8,
+ .imm = 1,
+ },
+ {
+ .code = (BPF_LD | BPF_IND | BPF_H),
+ .src_reg = EBPF_REG_8,
+ },
+ {
+ .code = (EBPF_ALU64 | BPF_ADD | BPF_X),
+ .dst_reg = EBPF_REG_0,
+ .src_reg = EBPF_REG_7,
+ },
+ {
+ .code = (BPF_JMP | EBPF_EXIT),
+ },
+};
+
+static void
+dummy_mbuf_prep(struct rte_mbuf *mb, uint8_t buf[], uint32_t buf_len,
+ uint32_t data_len)
+{
+ uint32_t i;
+ uint8_t *db;
+
+ mb->buf_addr = buf;
+ mb->buf_iova = (uintptr_t)buf;
+ mb->buf_len = buf_len;
+ rte_mbuf_refcnt_set(mb, 1);
+
+ /* set pool pointer to dummy value, test doesn't use it */
+ mb->pool = (void *)buf;
+
+ rte_pktmbuf_reset(mb);
+ db = (uint8_t *)rte_pktmbuf_append(mb, data_len);
+
+ for (i = 0; i != data_len; i++)
+ db[i] = i;
+}
+
+static void
+test_ld_mbuf1_prepare(void *arg)
+{
+ struct dummy_mbuf *dm;
+ struct rte_ipv4_hdr *ph;
+
+ const uint32_t plen = 400;
+ const struct rte_ipv4_hdr iph = {
+ .version_ihl = RTE_IPV4_VHL_DEF,
+ .total_length = rte_cpu_to_be_16(plen),
+ .time_to_live = IPDEFTTL,
+ .next_proto_id = IPPROTO_RAW,
+ .src_addr = rte_cpu_to_be_32(RTE_IPV4_LOOPBACK),
+ .dst_addr = rte_cpu_to_be_32(RTE_IPV4_BROADCAST),
+ };
+
+ dm = arg;
+ memset(dm, 0, sizeof(*dm));
+
+ dummy_mbuf_prep(&dm->mb[0], dm->buf[0], sizeof(dm->buf[0]),
+ plen / 2 + 1);
+ dummy_mbuf_prep(&dm->mb[1], dm->buf[1], sizeof(dm->buf[0]),
+ plen / 2 - 1);
+
+ rte_pktmbuf_chain(&dm->mb[0], &dm->mb[1]);
+
+ ph = rte_pktmbuf_mtod(dm->mb, typeof(ph));
+ memcpy(ph, &iph, sizeof(iph));
+}
+
+static uint64_t
+test_ld_mbuf1(const struct rte_mbuf *pkt)
+{
+ uint64_t n, v;
+ const uint8_t *p8;
+ const uint16_t *p16;
+ const uint32_t *p32;
+ struct dummy_offset dof;
+
+ /* load IPv4 version and IHL */
+ p8 = rte_pktmbuf_read(pkt,
+ offsetof(struct rte_ipv4_hdr, version_ihl), sizeof(*p8),
+ &dof);
+ if (p8 == NULL)
+ return 0;
+
+ /* check IP version */
+ if ((p8[0] & 0xf0) != IPVERSION << 4)
+ return 0;
+
+ n = (p8[0] & RTE_IPV4_HDR_IHL_MASK) * RTE_IPV4_IHL_MULTIPLIER;
+
+ /* load 3-rd byte of IP data */
+ p8 = rte_pktmbuf_read(pkt, n + 3, sizeof(*p8), &dof);
+ if (p8 == NULL)
+ return 0;
+
+ v = p8[0];
+
+ /* load IPv4 src addr */
+ p32 = rte_pktmbuf_read(pkt,
+ offsetof(struct rte_ipv4_hdr, src_addr), sizeof(*p32),
+ &dof);
+ if (p32 == NULL)
+ return 0;
+
+ v += rte_be_to_cpu_32(p32[0]);
+
+ /* load IPv4 total length */
+ p16 = rte_pktmbuf_read(pkt,
+ offsetof(struct rte_ipv4_hdr, total_length), sizeof(*p16),
+ &dof);
+ if (p16 == NULL)
+ return 0;
+
+ n = rte_be_to_cpu_16(p16[0]);
+
+ /* load last 4 bytes of IP data */
+ p32 = rte_pktmbuf_read(pkt, n - sizeof(*p32), sizeof(*p32), &dof);
+ if (p32 == NULL)
+ return 0;
+
+ v += rte_be_to_cpu_32(p32[0]);
+
+ /* load 2 bytes from the middle of IP data */
+ p16 = rte_pktmbuf_read(pkt, n / 2, sizeof(*p16), &dof);
+ if (p16 == NULL)
+ return 0;
+
+ v += rte_be_to_cpu_16(p16[0]);
+ return v;
+}
+
+static int
+test_ld_mbuf1_check(uint64_t rc, const void *arg)
+{
+ const struct dummy_mbuf *dm;
+ uint64_t v;
+
+ dm = arg;
+ v = test_ld_mbuf1(dm->mb);
+ return cmp_res(__func__, v, rc, arg, arg, 0);
+}
+
+/*
+ * same as ld_mbuf1, but then trancate the mbuf by 1B,
+ * so load of last 4B fail.
+ */
+static void
+test_ld_mbuf2_prepare(void *arg)
+{
+ struct dummy_mbuf *dm;
+
+ test_ld_mbuf1_prepare(arg);
+ dm = arg;
+ rte_pktmbuf_trim(dm->mb, 1);
+}
+
+static int
+test_ld_mbuf2_check(uint64_t rc, const void *arg)
+{
+ return cmp_res(__func__, 0, rc, arg, arg, 0);
+}
+
+/* same as test_ld_mbuf1, but now store intermediate results on the stack */
+static const struct ebpf_insn test_ld_mbuf3_prog[] = {
+
+ /* BPF_ABS/BPF_IND implicitly expect mbuf ptr in R6 */
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_6,
+ .src_reg = EBPF_REG_1,
+ },
+ /* load IPv4 version and IHL */
+ {
+ .code = (BPF_LD | BPF_ABS | BPF_B),
+ .imm = offsetof(struct rte_ipv4_hdr, version_ihl),
+ },
+ /* check IP version */
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_2,
+ .src_reg = EBPF_REG_0,
+ },
+ {
+ .code = (BPF_ALU | BPF_AND | BPF_K),
+ .dst_reg = EBPF_REG_2,
+ .imm = 0xf0,
+ },
+ {
+ .code = (BPF_JMP | BPF_JEQ | BPF_K),
+ .dst_reg = EBPF_REG_2,
+ .imm = IPVERSION << 4,
+ .off = 2,
+ },
+ /* invalid IP version, return 0 */
+ {
+ .code = (EBPF_ALU64 | BPF_XOR | BPF_X),
+ .dst_reg = EBPF_REG_0,
+ .src_reg = EBPF_REG_0,
+ },
+ {
+ .code = (BPF_JMP | EBPF_EXIT),
+ },
+ /* load 3-rd byte of IP data */
+ {
+ .code = (BPF_ALU | BPF_AND | BPF_K),
+ .dst_reg = EBPF_REG_0,
+ .imm = RTE_IPV4_HDR_IHL_MASK,
+ },
+ {
+ .code = (BPF_ALU | BPF_LSH | BPF_K),
+ .dst_reg = EBPF_REG_0,
+ .imm = 2,
+ },
+ {
+ .code = (BPF_LD | BPF_IND | BPF_B),
+ .src_reg = EBPF_REG_0,
+ .imm = 3,
+ },
+ {
+ .code = (BPF_STX | BPF_MEM | BPF_B),
+ .dst_reg = EBPF_REG_10,
+ .src_reg = EBPF_REG_0,
+ .off = (int16_t)(offsetof(struct dummy_offset, u8) -
+ sizeof(struct dummy_offset)),
+ },
+ /* load IPv4 src addr */
+ {
+ .code = (BPF_LD | BPF_ABS | BPF_W),
+ .imm = offsetof(struct rte_ipv4_hdr, src_addr),
+ },
+ {
+ .code = (BPF_STX | BPF_MEM | BPF_W),
+ .dst_reg = EBPF_REG_10,
+ .src_reg = EBPF_REG_0,
+ .off = (int16_t)(offsetof(struct dummy_offset, u32) -
+ sizeof(struct dummy_offset)),
+ },
+ /* load IPv4 total length */
+ {
+ .code = (BPF_LD | BPF_ABS | BPF_H),
+ .imm = offsetof(struct rte_ipv4_hdr, total_length),
+ },
+ {
+ .code = (EBPF_ALU64 | EBPF_MOV | BPF_X),
+ .dst_reg = EBPF_REG_8,
+ .src_reg = EBPF_REG_0,
+ },
+ /* load last 4 bytes of IP data */
+ {
+ .code = (BPF_LD | BPF_IND | BPF_W),
+ .src_reg = EBPF_REG_8,
+ .imm = -(int32_t)sizeof(uint32_t),
+ },
+ {
+ .code = (BPF_STX | BPF_MEM | EBPF_DW),
+ .dst_reg = EBPF_REG_10,
+ .src_reg = EBPF_REG_0,
+ .off = (int16_t)(offsetof(struct dummy_offset, u64) -
+ sizeof(struct dummy_offset)),
+ },
+ /* load 2 bytes from the middle of IP data */
+ {
+ .code = (EBPF_ALU64 | BPF_RSH | BPF_K),
+ .dst_reg = EBPF_REG_8,
+ .imm = 1,
+ },
+ {
+ .code = (BPF_LD | BPF_IND | BPF_H),
+ .src_reg = EBPF_REG_8,
+ },
+ {
+ .code = (BPF_LDX | BPF_MEM | EBPF_DW),
+ .dst_reg = EBPF_REG_1,
+ .src_reg = EBPF_REG_10,
+ .off = (int16_t)(offsetof(struct dummy_offset, u64) -
+ sizeof(struct dummy_offset)),
+ },
+ {
+ .code = (EBPF_ALU64 | BPF_ADD | BPF_X),
+ .dst_reg = EBPF_REG_0,
+ .src_reg = EBPF_REG_1,
+ },
+ {
+ .code = (BPF_LDX | BPF_MEM | BPF_W),
+ .dst_reg = EBPF_REG_1,
+ .src_reg = EBPF_REG_10,
+ .off = (int16_t)(offsetof(struct dummy_offset, u32) -
+ sizeof(struct dummy_offset)),
+ },
+ {
+ .code = (EBPF_ALU64 | BPF_ADD | BPF_X),
+ .dst_reg = EBPF_REG_0,
+ .src_reg = EBPF_REG_1,
+ },
+ {
+ .code = (BPF_LDX | BPF_MEM | BPF_B),
+ .dst_reg = EBPF_REG_1,
+ .src_reg = EBPF_REG_10,
+ .off = (int16_t)(offsetof(struct dummy_offset, u8) -
+ sizeof(struct dummy_offset)),
+ },
+ {
+ .code = (EBPF_ALU64 | BPF_ADD | BPF_X),
+ .dst_reg = EBPF_REG_0,
+ .src_reg = EBPF_REG_1,
+ },
+ {
+ .code = (BPF_JMP | EBPF_EXIT),
+ },
+};
+
/* all bpf test cases */
static const struct bpf_test tests[] = {
{
/* for now don't support function calls on 32 bit platform */
.allow_fail = (sizeof(uint64_t) != sizeof(uintptr_t)),
},
+ {
+ .name = "test_ld_mbuf1",
+ .arg_sz = sizeof(struct dummy_mbuf),
+ .prm = {
+ .ins = test_ld_mbuf1_prog,
+ .nb_ins = RTE_DIM(test_ld_mbuf1_prog),
+ .prog_arg = {
+ .type = RTE_BPF_ARG_PTR_MBUF,
+ .buf_size = sizeof(struct dummy_mbuf),
+ },
+ },
+ .prepare = test_ld_mbuf1_prepare,
+ .check_result = test_ld_mbuf1_check,
+ /* mbuf as input argument is not supported on 32 bit platform */
+ .allow_fail = (sizeof(uint64_t) != sizeof(uintptr_t)),
+ },
+ {
+ .name = "test_ld_mbuf2",
+ .arg_sz = sizeof(struct dummy_mbuf),
+ .prm = {
+ .ins = test_ld_mbuf1_prog,
+ .nb_ins = RTE_DIM(test_ld_mbuf1_prog),
+ .prog_arg = {
+ .type = RTE_BPF_ARG_PTR_MBUF,
+ .buf_size = sizeof(struct dummy_mbuf),
+ },
+ },
+ .prepare = test_ld_mbuf2_prepare,
+ .check_result = test_ld_mbuf2_check,
+ /* mbuf as input argument is not supported on 32 bit platform */
+ .allow_fail = (sizeof(uint64_t) != sizeof(uintptr_t)),
+ },
+ {
+ .name = "test_ld_mbuf3",
+ .arg_sz = sizeof(struct dummy_mbuf),
+ .prm = {
+ .ins = test_ld_mbuf3_prog,
+ .nb_ins = RTE_DIM(test_ld_mbuf3_prog),
+ .prog_arg = {
+ .type = RTE_BPF_ARG_PTR_MBUF,
+ .buf_size = sizeof(struct dummy_mbuf),
+ },
+ },
+ .prepare = test_ld_mbuf1_prepare,
+ .check_result = test_ld_mbuf1_check,
+ /* mbuf as input argument is not supported on 32 bit platform */
+ .allow_fail = (sizeof(uint64_t) != sizeof(uintptr_t)),
+ },
};
static int
(uintptr_t)((reg)[(ins)->dst_reg] + (ins)->off), \
reg[ins->src_reg]))
+/* BPF_LD | BPF_ABS/BPF_IND */
+
+#define NOP(x) (x)
+
+#define BPF_LD_ABS(bpf, reg, ins, type, op) do { \
+ const type *p = bpf_ld_mbuf(bpf, reg, ins, (ins)->imm, sizeof(type)); \
+ if (p == NULL) \
+ return 0; \
+ reg[EBPF_REG_0] = op(p[0]); \
+} while (0)
+
+#define BPF_LD_IND(bpf, reg, ins, type, op) do { \
+ uint32_t ofs = reg[ins->src_reg] + (ins)->imm; \
+ const type *p = bpf_ld_mbuf(bpf, reg, ins, ofs, sizeof(type)); \
+ if (p == NULL) \
+ return 0; \
+ reg[EBPF_REG_0] = op(p[0]); \
+} while (0)
+
+
static inline void
bpf_alu_be(uint64_t reg[EBPF_REG_NUM], const struct ebpf_insn *ins)
{
}
}
+static inline const void *
+bpf_ld_mbuf(const struct rte_bpf *bpf, uint64_t reg[EBPF_REG_NUM],
+ const struct ebpf_insn *ins, uint32_t off, uint32_t len)
+{
+ const struct rte_mbuf *mb;
+ const void *p;
+
+ mb = (const struct rte_mbuf *)(uintptr_t)reg[EBPF_REG_6];
+ p = rte_pktmbuf_read(mb, off, len, reg + EBPF_REG_0);
+ if (p == NULL)
+ RTE_BPF_LOG(DEBUG, "%s(bpf=%p, mbuf=%p, ofs=%u, len=%u): "
+ "load beyond packet boundary at pc: %#zx;\n",
+ __func__, bpf, mb, off, len,
+ (uintptr_t)(ins) - (uintptr_t)(bpf)->prm.ins);
+ return p;
+}
+
static inline uint64_t
bpf_exec(const struct rte_bpf *bpf, uint64_t reg[EBPF_REG_NUM])
{
(uint64_t)(uint32_t)ins[1].imm << 32;
ins++;
break;
+ /* load absolute instructions */
+ case (BPF_LD | BPF_ABS | BPF_B):
+ BPF_LD_ABS(bpf, reg, ins, uint8_t, NOP);
+ break;
+ case (BPF_LD | BPF_ABS | BPF_H):
+ BPF_LD_ABS(bpf, reg, ins, uint16_t, rte_be_to_cpu_16);
+ break;
+ case (BPF_LD | BPF_ABS | BPF_W):
+ BPF_LD_ABS(bpf, reg, ins, uint32_t, rte_be_to_cpu_32);
+ break;
+ /* load indirect instructions */
+ case (BPF_LD | BPF_IND | BPF_B):
+ BPF_LD_IND(bpf, reg, ins, uint8_t, NOP);
+ break;
+ case (BPF_LD | BPF_IND | BPF_H):
+ BPF_LD_IND(bpf, reg, ins, uint16_t, rte_be_to_cpu_16);
+ break;
+ case (BPF_LD | BPF_IND | BPF_W):
+ BPF_LD_IND(bpf, reg, ins, uint32_t, rte_be_to_cpu_32);
+ break;
/* store instructions */
case (BPF_STX | BPF_MEM | BPF_B):
BPF_ST_REG(reg, ins, uint8_t);
#define WRT_REGS RTE_LEN2MASK(EBPF_REG_10, uint16_t)
#define ZERO_REG RTE_LEN2MASK(EBPF_REG_1, uint16_t)
+/* For LD_IND R6 is an implicit CTX register. */
+#define IND_SRC_REGS (WRT_REGS ^ 1 << EBPF_REG_6)
+
/*
* check and evaluate functions for particular instruction types.
*/
rd->s.min = RTE_MIN(sx, sy);
}
+static const char *
+eval_ld_mbuf(struct bpf_verifier *bvf, const struct ebpf_insn *ins)
+{
+ uint32_t i, mode;
+ struct bpf_reg_val *rv, ri, rs;
+
+ mode = BPF_MODE(ins->code);
+
+ /* R6 is an implicit input that must contain pointer to mbuf */
+ if (bvf->evst->rv[EBPF_REG_6].v.type != RTE_BPF_ARG_PTR_MBUF)
+ return "invalid type for implicit ctx register";
+
+ if (mode == BPF_IND) {
+ rs = bvf->evst->rv[ins->src_reg];
+ if (rs.v.type != RTE_BPF_ARG_RAW)
+ return "unexpected type for src register";
+
+ eval_fill_imm(&ri, UINT64_MAX, ins->imm);
+ eval_add(&rs, &ri, UINT64_MAX);
+
+ if (rs.s.max < 0 || rs.u.min > UINT32_MAX)
+ return "mbuf boundary violation";
+ }
+
+ /* R1-R5 scratch registers */
+ for (i = EBPF_REG_1; i != EBPF_REG_6; i++)
+ bvf->evst->rv[i].v.type = RTE_BPF_ARG_UNDEF;
+
+ /* R0 is an implicit output, contains data fetched from the packet */
+ rv = bvf->evst->rv + EBPF_REG_0;
+ rv->v.size = bpf_size(BPF_SIZE(ins->code));
+ eval_fill_max_bound(rv, RTE_LEN2MASK(rv->v.size * CHAR_BIT, uint64_t));
+
+ return NULL;
+}
+
/*
* check that destination and source operand are in defined state.
*/
.imm = { .min = 0, .max = UINT32_MAX},
.eval = eval_ld_imm64,
},
+ /* load absolute instructions */
+ [(BPF_LD | BPF_ABS | BPF_B)] = {
+ .mask = {. dreg = ZERO_REG, .sreg = ZERO_REG},
+ .off = { .min = 0, .max = 0},
+ .imm = { .min = 0, .max = INT32_MAX},
+ .eval = eval_ld_mbuf,
+ },
+ [(BPF_LD | BPF_ABS | BPF_H)] = {
+ .mask = {. dreg = ZERO_REG, .sreg = ZERO_REG},
+ .off = { .min = 0, .max = 0},
+ .imm = { .min = 0, .max = INT32_MAX},
+ .eval = eval_ld_mbuf,
+ },
+ [(BPF_LD | BPF_ABS | BPF_W)] = {
+ .mask = {. dreg = ZERO_REG, .sreg = ZERO_REG},
+ .off = { .min = 0, .max = 0},
+ .imm = { .min = 0, .max = INT32_MAX},
+ .eval = eval_ld_mbuf,
+ },
+ /* load indirect instructions */
+ [(BPF_LD | BPF_IND | BPF_B)] = {
+ .mask = {. dreg = ZERO_REG, .sreg = IND_SRC_REGS},
+ .off = { .min = 0, .max = 0},
+ .imm = { .min = 0, .max = UINT32_MAX},
+ .eval = eval_ld_mbuf,
+ },
+ [(BPF_LD | BPF_IND | BPF_H)] = {
+ .mask = {. dreg = ZERO_REG, .sreg = IND_SRC_REGS},
+ .off = { .min = 0, .max = 0},
+ .imm = { .min = 0, .max = UINT32_MAX},
+ .eval = eval_ld_mbuf,
+ },
+ [(BPF_LD | BPF_IND | BPF_W)] = {
+ .mask = {. dreg = ZERO_REG, .sreg = IND_SRC_REGS},
+ .off = { .min = 0, .max = 0},
+ .imm = { .min = 0, .max = UINT32_MAX},
+ .eval = eval_ld_mbuf,
+ },
/* store REG instructions */
[(BPF_STX | BPF_MEM | BPF_B)] = {
.mask = { .dreg = ALL_REGS, .sreg = ALL_REGS},
git.droids-corp.org / dpdk.git / commitdiff