Sync with latest libbpf repo (#4993)

The top sync commit is: e05542003381 sync: Commit .mailmap changes from script when sync-ing repo Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
iovisor · May 8, 2024 · eb7cdd2 · eb7cdd2
1 parent 77c0591
commit eb7cdd2
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Showing 3 changed files with 81 additions and 10 deletions.
diff --git a/introspection/bps.c b/introspection/bps.c
@@ -84,6 +84,7 @@ static const char * const map_type_strings[] = {
   [BPF_MAP_TYPE_BLOOM_FILTER] = "bloom_filter",
   [BPF_MAP_TYPE_USER_RINGBUF] = "user_ringbuf",
   [BPF_MAP_TYPE_CGRP_STORAGE] = "cgrp_storage",
+  [BPF_MAP_TYPE_ARENA] = "arena",
 };
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))

diff --git a/src/cc/compat/linux/virtual_bpf.h b/src/cc/compat/linux/virtual_bpf.h
@@ -43,6 +43,7 @@ R"********(
 #define BPF_JSGE	0x70	/* SGE is signed '>=', GE in x86 */
 #define BPF_JSLT	0xc0	/* SLT is signed, '<' */
 #define BPF_JSLE	0xd0	/* SLE is signed, '<=' */
+#define BPF_JCOND	0xe0	/* conditional pseudo jumps: may_goto, goto_or_nop */
 #define BPF_CALL	0x80	/* function call */
 #define BPF_EXIT	0x90	/* function return */
 
@@ -51,6 +52,10 @@ R"********(
 #define BPF_XCHG	(0xe0 | BPF_FETCH)	/* atomic exchange */
 #define BPF_CMPXCHG	(0xf0 | BPF_FETCH)	/* atomic compare-and-write */
 
+enum bpf_cond_pseudo_jmp {
+	BPF_MAY_GOTO = 0,
+};
+
 /* Register numbers */
 enum {
 	BPF_REG_0 = 0,
@@ -78,12 +83,29 @@ struct bpf_insn {
 	__s32	imm;		/* signed immediate constant */
 };
 
-/* Key of an a BPF_MAP_TYPE_LPM_TRIE entry */
+/* Deprecated: use struct bpf_lpm_trie_key_u8 (when the "data" member is needed for
+ * byte access) or struct bpf_lpm_trie_key_hdr (when using an alternative type for
+ * the trailing flexible array member) instead.
+ */
 struct bpf_lpm_trie_key {
 	__u32	prefixlen;	/* up to 32 for AF_INET, 128 for AF_INET6 */
 	__u8	data[0];	/* Arbitrary size */
 };
 
+/* Header for bpf_lpm_trie_key structs */
+struct bpf_lpm_trie_key_hdr {
+	__u32	prefixlen;
+};
+
+/* Key of an a BPF_MAP_TYPE_LPM_TRIE entry, with trailing byte array. */
+struct bpf_lpm_trie_key_u8 {
+	union {
+		struct bpf_lpm_trie_key_hdr	hdr;
+		__u32				prefixlen;
+	};
+	__u8	data[];		/* Arbitrary size */
+};
+
 struct bpf_cgroup_storage_key {
 	__u64	cgroup_inode_id;	/* cgroup inode id */
 	__u32	attach_type;		/* program attach type (enum bpf_attach_type) */
@@ -618,7 +640,11 @@ union bpf_iter_link_info {
  *		to NULL to begin the batched operation. After each subsequent
  *		**BPF_MAP_LOOKUP_BATCH**, the caller should pass the resultant
  *		*out_batch* as the *in_batch* for the next operation to
- *		continue iteration from the current point.
+ *		continue iteration from the current point. Both *in_batch* and
+ *		*out_batch* must point to memory large enough to hold a key,
+ *		except for maps of type **BPF_MAP_TYPE_{HASH, PERCPU_HASH,
+ *		LRU_HASH, LRU_PERCPU_HASH}**, for which batch parameters
+ *		must be at least 4 bytes wide regardless of key size.
  *
  *		The *keys* and *values* are output parameters which must point
  *		to memory large enough to hold *count* items based on the key
@@ -984,6 +1010,7 @@ enum bpf_map_type {
 	BPF_MAP_TYPE_BLOOM_FILTER,
 	BPF_MAP_TYPE_USER_RINGBUF,
 	BPF_MAP_TYPE_CGRP_STORAGE,
+	BPF_MAP_TYPE_ARENA,
 	__MAX_BPF_MAP_TYPE
 };
 
@@ -1089,6 +1116,7 @@ enum bpf_attach_type {
 	BPF_CGROUP_UNIX_GETSOCKNAME,
 	BPF_NETKIT_PRIMARY,
 	BPF_NETKIT_PEER,
+	BPF_TRACE_KPROBE_SESSION,
 	__MAX_BPF_ATTACH_TYPE
 };
 
@@ -1109,6 +1137,7 @@ enum bpf_link_type {
 	BPF_LINK_TYPE_TCX = 11,
 	BPF_LINK_TYPE_UPROBE_MULTI = 12,
 	BPF_LINK_TYPE_NETKIT = 13,
+	BPF_LINK_TYPE_SOCKMAP = 14,
 	__MAX_BPF_LINK_TYPE,
 };
 
@@ -1313,6 +1342,10 @@ enum {
  */
 #define BPF_PSEUDO_KFUNC_CALL	2
 
+enum bpf_addr_space_cast {
+	BPF_ADDR_SPACE_CAST = 1,
+};
+
 /* flags for BPF_MAP_UPDATE_ELEM command */
 enum {
 	BPF_ANY		= 0, /* create new element or update existing */
@@ -1371,6 +1404,12 @@ enum {
 
 /* BPF token FD is passed in a corresponding command's token_fd field */
 	BPF_F_TOKEN_FD          = (1U << 16),
+
+/* When user space page faults in bpf_arena send SIGSEGV instead of inserting new page */
+	BPF_F_SEGV_ON_FAULT	= (1U << 17),
+
+/* Do not translate kernel bpf_arena pointers to user pointers */
+	BPF_F_NO_USER_CONV	= (1U << 18),
 };
 
 /* Flags for BPF_PROG_QUERY. */
@@ -1442,6 +1481,9 @@ union bpf_attr {
 		 * BPF_MAP_TYPE_BLOOM_FILTER - the lowest 4 bits indicate the
 		 * number of hash functions (if 0, the bloom filter will default
 		 * to using 5 hash functions).
+		 *
+		 * BPF_MAP_TYPE_ARENA - contains the address where user space
+		 * is going to mmap() the arena. It has to be page aligned.
 		 */
 		__u64	map_extra;
 
@@ -1623,8 +1665,10 @@ union bpf_attr {
 	} query;
 
 	struct { /* anonymous struct used by BPF_RAW_TRACEPOINT_OPEN command */
-		__u64 name;
-		__u32 prog_fd;
+		__u64		name;
+		__u32		prog_fd;
+		__u32		:32;
+		__aligned_u64	cookie;
 	} raw_tracepoint;
 
 	struct { /* anonymous struct for BPF_BTF_LOAD */
@@ -3353,6 +3397,10 @@ union bpf_attr {
  *			for the nexthop. If the src addr cannot be derived,
  *			**BPF_FIB_LKUP_RET_NO_SRC_ADDR** is returned. In this
  *			case, *params*->dmac and *params*->smac are not set either.
+ *		**BPF_FIB_LOOKUP_MARK**
+ *			Use the mark present in *params*->mark for the fib lookup.
+ *			This option should not be used with BPF_FIB_LOOKUP_DIRECT,
+ *			as it only has meaning for full lookups.
  *
  *		*ctx* is either **struct xdp_md** for XDP programs or
  *		**struct sk_buff** tc cls_act programs.
@@ -4981,7 +5029,7 @@ union bpf_attr {
  *		bytes will be copied to *dst*
  *	Return
  *		The **hash_algo** is returned on success,
- *		**-EOPNOTSUP** if IMA is disabled or **-EINVAL** if
+ *		**-EOPNOTSUPP** if IMA is disabled or **-EINVAL** if
  *		invalid arguments are passed.
  *
  * struct socket *bpf_sock_from_file(struct file *file)
@@ -5467,7 +5515,7 @@ union bpf_attr {
  *		bytes will be copied to *dst*
  *	Return
  *		The **hash_algo** is returned on success,
- *		**-EOPNOTSUP** if the hash calculation failed or **-EINVAL** if
+ *		**-EOPNOTSUPP** if the hash calculation failed or **-EINVAL** if
  *		invalid arguments are passed.
  *
  * void *bpf_kptr_xchg(void *map_value, void *ptr)
@@ -6679,6 +6727,10 @@ struct bpf_link_info {
 			__u32 ifindex;
 			__u32 attach_type;
 		} netkit;
+		struct {
+			__u32 map_id;
+			__u32 attach_type;
+		} sockmap;
 	};
 } __attribute__((aligned(8)));
 
@@ -6897,6 +6949,8 @@ enum {
 					 * socket transition to LISTEN state.
 					 */
 	BPF_SOCK_OPS_RTT_CB,		/* Called on every RTT.
+					 * Arg1: measured RTT input (mrtt)
+					 * Arg2: updated srtt
 					 */
 	BPF_SOCK_OPS_PARSE_HDR_OPT_CB,	/* Parse the header option.
 					 * It will be called to handle
@@ -7079,6 +7133,7 @@ enum {
 	BPF_FIB_LOOKUP_SKIP_NEIGH = (1U << 2),
 	BPF_FIB_LOOKUP_TBID    = (1U << 3),
 	BPF_FIB_LOOKUP_SRC     = (1U << 4),
+	BPF_FIB_LOOKUP_MARK    = (1U << 5),
 };
 
 enum {
@@ -7111,7 +7166,7 @@ struct bpf_fib_lookup {
 
 		/* output: MTU value */
 		__u16	mtu_result;
-	};
+	} __attribute__((packed, aligned(2)));
 	/* input: L3 device index for lookup
 	 * output: device index from FIB lookup
 	 */
@@ -7156,8 +7211,19 @@ struct bpf_fib_lookup {
 		__u32	tbid;
 	};
 
-	__u8	smac[6];     /* ETH_ALEN */
-	__u8	dmac[6];     /* ETH_ALEN */
+	union {
+		/* input */
+		struct {
+			__u32	mark;   /* policy routing */
+			/* 2 4-byte holes for input */
+		};
+
+		/* output: source and dest mac */
+		struct {
+			__u8	smac[6];	/* ETH_ALEN */
+			__u8	dmac[6];	/* ETH_ALEN */
+		};
+	};
 };
 
 struct bpf_redir_neigh {
@@ -7244,6 +7310,10 @@ struct bpf_timer {
 	__u64 __opaque[2];
 } __attribute__((aligned(8)));
 
+struct bpf_wq {
+	__u64 __opaque[2];
+} __attribute__((aligned(8)));
+
 struct bpf_dynptr {
 	__u64 __opaque[2];
 } __attribute__((aligned(8)));

diff --git a/src/cc/libbpf b/src/cc/libbpf
+1 −1		.gitattributes
+3 −0		.github/PULL_REQUEST_TEMPLATE.md
+1 −0		.github/actions/build-selftests/build_selftests.sh
+2 −0		.github/actions/build-selftests/prepare_selftests-4.9.0.sh
+2 −0		.github/actions/build-selftests/prepare_selftests-5.5.0.sh
+80,061 −81,168		.github/actions/build-selftests/vmlinux.h
+19 −0		.github/actions/vmtest/action.yml
+3 −3		.github/workflows/build.yml
+1 −1		.github/workflows/codeql.yml
+1 −1		.github/workflows/coverity.yml
+1 −1		.github/workflows/lint.yml
+1 −1		.github/workflows/ondemand.yml
+1 −1		.github/workflows/pahole.yml
+1 −1		.github/workflows/test.yml
+17 −0		.mailmap
+6 −2		.readthedocs.yaml
+1 −1		BPF-CHECKPOINT-COMMIT
+1 −1		CHECKPOINT-COMMIT
+1 −1		README.md
+69 −0		ci/diffs/0001-arch-Kconfig-Move-SPECULATION_MITIGATIONS-to-arch-Kc.patch
+0 −70		ci/diffs/0001-s390-define-RUNTIME_DISCARD_EXIT-to-fix-link-error-w.patch
+0 −46		ci/diffs/0001-selftests-bpf-Select-CONFIG_FUNCTION_ERROR_INJECTION.patch
+56 −0		ci/diffs/0002-xdp-bonding-Fix-feature-flags-when-there-are-no-slav.patch
+1 −5		ci/vmtest/configs/ALLOWLIST-5.5.0
+14 −0		ci/vmtest/configs/DENYLIST
+2 −115		ci/vmtest/configs/DENYLIST-5.5.0
+12 −0		ci/vmtest/configs/DENYLIST-latest
+14 −0		ci/vmtest/configs/DENYLIST-latest.s390x
+10 −3		ci/vmtest/run_selftests.sh
+1 −0		docs/conf.py
+10 −0		docs/program_types.rst
+2 −1		docs/sphinx/requirements.txt
+8 −0		include/linux/filter.h
+2 −0		include/linux/kernel.h
+403 −53		include/uapi/linux/bpf.h
+8 −0		include/uapi/linux/fcntl.h
+142 −0		include/uapi/linux/if_link.h
+59 −1		include/uapi/linux/if_xdp.h
+115 −1		include/uapi/linux/netdev.h
+15 −1		include/uapi/linux/perf_event.h
+0 −47		include/uapi/linux/pkt_cls.h
+0 −109		include/uapi/linux/pkt_sched.h
+4 −3		scripts/build-fuzzers.sh
+37 −0		scripts/mailmap-update.sh
+16 −0		scripts/sync-kernel.sh
+6 −3		src/Makefile
+188 −50		src/bpf.c
+194 −31		src/bpf.h
+84 −8		src/bpf_core_read.h
+247 −225		src/bpf_helper_defs.h
+21 −6		src/bpf_helpers.h
+3 −4		src/bpf_tracing.h
+197 −8		src/btf.c
+24 −3		src/btf_dump.c
+558 −0		src/elf.c
+583 −0		src/features.c
+7 −7		src/gen_loader.c
+0 −10		src/hashmap.h
+2,016 −877		src/libbpf.c
+236 −5		src/libbpf.h
+34 −2		src/libbpf.map
+19 −0		src/libbpf_common.h
+98 −9		src/libbpf_internal.h
+24 −6		src/libbpf_probes.c
+1 −1		src/libbpf_version.h
+24 −5		src/linker.c
+6 −1		src/netlink.c
+1 −1		src/relo_core.c
+115 −19		src/ringbuf.c
+3 −0		src/str_error.h
+2 −2		src/usdt.bpf.h
+85 −41		src/usdt.c