Merge branch 'main' into update-github-workflow

Author: c0d33ngr

.github/workflows/build.yaml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, ubuntu-24.04]
+        os: [ubuntu-22.04]
     runs-on: ${{ matrix.os }}
     env:
       FEATURES: .llvm and .skeletons

BPF-CHECKPOINT-COMMIT

@@ -1 +1 @@
-319fc77f8f45a1b3dba15b0cc1a869778fd222f7
+b4432656b36e5cc1d50a1f2dc15357543add530e

CHECKPOINT-COMMIT

@@ -1 +1 @@
-239860828f8660e2be487e2fbdae2640cce3fd67
+9325d53fe9adff354b6a93fda5f38c165947da0f

docs/Makefile

@@ -5,12 +5,6 @@ INSTALL ?= install
 RM ?= rm -f
 RMDIR ?= rmdir --ignore-fail-on-non-empty
 
-ifeq ($(V),1)
-  Q =
-else
-  Q = @
-endif
-
 prefix ?= /usr/local
 mandir ?= $(prefix)/man
 man8dir = $(mandir)/man8

include/uapi/linux/bpf.h

@@ -51,6 +51,9 @@
 #define BPF_XCHG	(0xe0 | BPF_FETCH)	/* atomic exchange */
 #define BPF_CMPXCHG	(0xf0 | BPF_FETCH)	/* atomic compare-and-write */
 
+#define BPF_LOAD_ACQ	0x100	/* load-acquire */
+#define BPF_STORE_REL	0x110	/* store-release */
+
 enum bpf_cond_pseudo_jmp {
 	BPF_MAY_GOTO = 0,
 };
@@ -1207,6 +1210,7 @@ enum bpf_perf_event_type {
 #define BPF_F_BEFORE		(1U << 3)
 #define BPF_F_AFTER		(1U << 4)
 #define BPF_F_ID		(1U << 5)
+#define BPF_F_PREORDER		(1U << 6)
 #define BPF_F_LINK		BPF_F_LINK /* 1 << 13 */
 
 /* If BPF_F_STRICT_ALIGNMENT is used in BPF_PROG_LOAD command, the
@@ -1502,7 +1506,7 @@ union bpf_attr {
 		__s32	map_token_fd;
 	};
 
-	struct { /* anonymous struct used by BPF_MAP_*_ELEM commands */
+	struct { /* anonymous struct used by BPF_MAP_*_ELEM and BPF_MAP_FREEZE commands */
 		__u32		map_fd;
 		__aligned_u64	key;
 		union {
@@ -1648,6 +1652,7 @@ union bpf_attr {
 		};
 		__u32		next_id;
 		__u32		open_flags;
+		__s32		fd_by_id_token_fd;
 	};
 
 	struct { /* anonymous struct used by BPF_OBJ_GET_INFO_BY_FD */
@@ -1990,11 +1995,15 @@ union bpf_attr {
  * long bpf_skb_store_bytes(struct sk_buff *skb, u32 offset, const void *from, u32 len, u64 flags)
  * 	Description
  * 		Store *len* bytes from address *from* into the packet
- * 		associated to *skb*, at *offset*. *flags* are a combination of
- * 		**BPF_F_RECOMPUTE_CSUM** (automatically recompute the
- * 		checksum for the packet after storing the bytes) and
- * 		**BPF_F_INVALIDATE_HASH** (set *skb*\ **->hash**, *skb*\
- * 		**->swhash** and *skb*\ **->l4hash** to 0).
+ * 		associated to *skb*, at *offset*. The *flags* are a combination
+ * 		of the following values:
+ *
+ * 		**BPF_F_RECOMPUTE_CSUM**
+ * 			Automatically update *skb*\ **->csum** after storing the
+ * 			bytes.
+ * 		**BPF_F_INVALIDATE_HASH**
+ * 			Set *skb*\ **->hash**, *skb*\ **->swhash** and *skb*\
+ * 			**->l4hash** to 0.
  *
  * 		A call to this helper is susceptible to change the underlying
  * 		packet buffer. Therefore, at load time, all checks on pointers
@@ -2046,7 +2055,7 @@ union bpf_attr {
  * 		untouched (unless **BPF_F_MARK_ENFORCE** is added as well), and
  * 		for updates resulting in a null checksum the value is set to
  * 		**CSUM_MANGLED_0** instead. Flag **BPF_F_PSEUDO_HDR** indicates
- * 		the checksum is to be computed against a pseudo-header.
+ * 		that the modified header field is part of the pseudo-header.
  *
  * 		This helper works in combination with **bpf_csum_diff**\ (),
  * 		which does not update the checksum in-place, but offers more
@@ -6715,6 +6724,7 @@ struct bpf_link_info {
 					__u32 name_len;
 					__u32 offset; /* offset from file_name */
 					__u64 cookie;
+					__u64 ref_ctr_offset;
 				} uprobe; /* BPF_PERF_EVENT_UPROBE, BPF_PERF_EVENT_URETPROBE */
 				struct {
 					__aligned_u64 func_name; /* in/out */
@@ -6916,6 +6926,12 @@ enum {
 	BPF_SOCK_OPS_ALL_CB_FLAGS       = 0x7F,
 };
 
+enum {
+	SK_BPF_CB_TX_TIMESTAMPING	= 1<<0,
+	SK_BPF_CB_MASK			= (SK_BPF_CB_TX_TIMESTAMPING - 1) |
+					   SK_BPF_CB_TX_TIMESTAMPING
+};
+
 /* List of known BPF sock_ops operators.
  * New entries can only be added at the end
  */
@@ -7028,6 +7044,29 @@ enum {
 					 * by the kernel or the
 					 * earlier bpf-progs.
 					 */
+	BPF_SOCK_OPS_TSTAMP_SCHED_CB,	/* Called when skb is passing
+					 * through dev layer when
+					 * SK_BPF_CB_TX_TIMESTAMPING
+					 * feature is on.
+					 */
+	BPF_SOCK_OPS_TSTAMP_SND_SW_CB,	/* Called when skb is about to send
+					 * to the nic when SK_BPF_CB_TX_TIMESTAMPING
+					 * feature is on.
+					 */
+	BPF_SOCK_OPS_TSTAMP_SND_HW_CB,	/* Called in hardware phase when
+					 * SK_BPF_CB_TX_TIMESTAMPING feature
+					 * is on.
+					 */
+	BPF_SOCK_OPS_TSTAMP_ACK_CB,	/* Called when all the skbs in the
+					 * same sendmsg call are acked
+					 * when SK_BPF_CB_TX_TIMESTAMPING
+					 * feature is on.
+					 */
+	BPF_SOCK_OPS_TSTAMP_SENDMSG_CB,	/* Called when every sendmsg syscall
+					 * is triggered. It's used to correlate
+					 * sendmsg timestamp with corresponding
+					 * tskey.
+					 */
 };
 
 /* List of TCP states. There is a build check in net/ipv4/tcp.c to detect
@@ -7094,6 +7133,7 @@ enum {
 	TCP_BPF_SYN_IP		= 1006, /* Copy the IP[46] and TCP header */
 	TCP_BPF_SYN_MAC         = 1007, /* Copy the MAC, IP[46], and TCP header */
 	TCP_BPF_SOCK_OPS_CB_FLAGS = 1008, /* Get or Set TCP sock ops flags */
+	SK_BPF_CB_FLAGS		= 1009, /* Get or set sock ops flags in socket */
 };
 
 enum {

include/uapi/linux/const.h

@@ -33,7 +33,7 @@
  * Missing asm support
  *
  * __BIT128() would not work in the asm code, as it shifts an
- * 'unsigned __init128' data type as direct representation of
+ * 'unsigned __int128' data type as direct representation of
  * 128 bit constants is not supported in the gcc compiler, as
  * they get silently truncated.
  *

include/uapi/linux/perf_event.h

@@ -385,6 +385,8 @@ enum perf_event_read_format {
  *
  * @sample_max_stack: Max number of frame pointers in a callchain,
  *		      should be < /proc/sys/kernel/perf_event_max_stack
+ *		      Max number of entries of branch stack
+ *		      should be < hardware limit
  */
 struct perf_event_attr {
 

libbpf

@@ -21,7 +21,7 @@
  libbpf
 --- src/Makefile
 +++ src/Makefile
-@@ -1,10 +1,8 @@
+@@ -1,13 +1,11 @@
  # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 -include ../../scripts/Makefile.include
 +include Makefile.include
@@ -32,17 +32,12 @@
 -srctree := $(patsubst %/,%,$(dir $(srctree)))
  endif
 
- ifeq ($(V),1)
-@@ -13,7 +11,7 @@
-   Q = @
- endif
- 
 -BPF_DIR = $(srctree)/tools/lib/bpf
 +BPF_DIR = $(srctree)/libbpf/src
 
  ifneq ($(OUTPUT),)
    _OUTPUT := $(OUTPUT)
-@@ -43,16 +41,16 @@
+@@ -37,16 +35,16 @@
  	$(QUIET_MKDIR)mkdir -p $@
 
  $(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT)
@@ -63,7 +58,7 @@
  		ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" $@ install_headers
 
  $(LIBBPF_BOOTSTRAP_INTERNAL_HDRS): $(LIBBPF_BOOTSTRAP_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_BOOTSTRAP_HDRS_DIR)
-@@ -76,9 +74,9 @@
+@@ -75,9 +73,9 @@
  CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
  	-I$(or $(OUTPUT),.) \
  	-I$(LIBBPF_INCLUDE) \
@@ -89,7 +84,7 @@
  endif
 
  LIBS = $(LIBBPF) -lelf -lz
-@@ -214,7 +208,7 @@
+@@ -225,7 +219,7 @@
  $(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF_BOOTSTRAP)
  	$(QUIET_CLANG)$(CLANG) \
  		-I$(or $(OUTPUT),.) \
@@ -98,7 +93,7 @@
  		-I$(LIBBPF_BOOTSTRAP_INCLUDE) \
  		-g -O2 -Wall -fno-stack-protector \
  		--target=bpf -c $< -o $@
-@@ -232,7 +226,7 @@
+@@ -243,7 +237,7 @@
 
  CFLAGS += $(if $(BUILD_BPF_SKELS),,-DBPFTOOL_WITHOUT_SKELETONS)
 
@@ -107,7 +102,7 @@
  	$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD $< -o $@
 
  $(BPFTOOL_BOOTSTRAP): $(BOOTSTRAP_OBJS) $(LIBBPF_BOOTSTRAP)
-@@ -251,7 +245,7 @@
+@@ -262,7 +256,7 @@
  	$(call QUIET_CLEAN, feature-detect)
  	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null
 
@@ -116,7 +111,7 @@
  	$(call QUIET_CLEAN, bpftool)
  	$(Q)$(RM) -- $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
  	$(Q)$(RM) -- $(OUTPUT)*.skel.h $(OUTPUT)vmlinux.h
-@@ -267,7 +261,7 @@
+@@ -278,7 +272,7 @@
 
  install: install-bin
  	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir)
@@ -125,7 +120,7 @@
 
  uninstall:
  	$(call QUIET_UNINST, bpftool)
-@@ -275,16 +269,16 @@
+@@ -286,16 +280,16 @@
  	$(Q)$(RM) -- $(DESTDIR)$(bash_compdir)/bpftool
 
  doc:

scripts/sync-kernel-expected-diff.patch

@@ -5,12 +5,6 @@ ifeq ($(srctree),)
 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
 endif
 
-ifeq ($(V),1)
-  Q =
-else
-  Q = @
-endif
-
 BPF_DIR = $(srctree)/libbpf/src
 
 ifneq ($(OUTPUT),)
@@ -69,7 +63,12 @@ prefix ?= /usr/local
 bash_compdir ?= /usr/share/bash-completion/completions
 
 CFLAGS += -O2
-CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
+CFLAGS += -W
+CFLAGS += -Wall
+CFLAGS += -Wextra
+CFLAGS += -Wformat-signedness
+CFLAGS += -Wno-unused-parameter
+CFLAGS += -Wno-missing-field-initializers
 CFLAGS += $(filter-out -Wswitch-enum -Wnested-externs,$(EXTRA_WARNINGS))
 CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
 	-I$(or $(OUTPUT),.) \

src/Makefile

@@ -43,6 +43,12 @@ EXTRA_WARNINGS := \
 	-Wundef \
 	-Wwrite-strings \
 
+ifeq ($(V),1)
+  Q =
+else
+  Q = @
+endif
+
 define descend
   mkdir -p $(OUTPUT)$(1) && \
     $(MAKE) --no-print-directory -C $(1) $(2)

src/Makefile.include

@@ -253,7 +253,7 @@ static int dump_btf_type(const struct btf *btf, __u32 id,
 				if (btf_kflag(t))
 					printf("\n\t'%s' val=%d", name, v->val);
 				else
-					printf("\n\t'%s' val=%u", name, v->val);
+					printf("\n\t'%s' val=%u", name, (__u32)v->val);
 			}
 		}
 		if (json_output)
@@ -1022,7 +1022,7 @@ static int do_dump(int argc, char **argv)
 			for (i = 0; i < root_type_cnt; i++) {
 				if (root_type_ids[i] == root_id) {
 					err = -EINVAL;
-					p_err("duplicate root_id %d supplied", root_id);
+					p_err("duplicate root_id %u supplied", root_id);
 					goto done;
 				}
 			}
@@ -1132,7 +1132,7 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type,
 			break;
 		default:
 			err = -1;
-			p_err("unexpected object type: %d", type);
+			p_err("unexpected object type: %u", type);
 			goto err_free;
 		}
 		if (err) {
@@ -1155,7 +1155,7 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type,
 			break;
 		default:
 			err = -1;
-			p_err("unexpected object type: %d", type);
+			p_err("unexpected object type: %u", type);
 			goto err_free;
 		}
 		if (fd < 0) {
@@ -1188,7 +1188,7 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type,
 			break;
 		default:
 			err = -1;
-			p_err("unexpected object type: %d", type);
+			p_err("unexpected object type: %u", type);
 			goto err_free;
 		}
 		if (!btf_id)
@@ -1254,12 +1254,12 @@ show_btf_plain(struct bpf_btf_info *info, int fd,
 
 	n = 0;
 	hashmap__for_each_key_entry(btf_prog_table, entry, info->id) {
-		printf("%s%lu", n++ == 0 ? "  prog_ids " : ",", entry->value);
+		printf("%s%lu", n++ == 0 ? "  prog_ids " : ",", (unsigned long)entry->value);
 	}
 
 	n = 0;
 	hashmap__for_each_key_entry(btf_map_table, entry, info->id) {
-		printf("%s%lu", n++ == 0 ? "  map_ids " : ",", entry->value);
+		printf("%s%lu", n++ == 0 ? "  map_ids " : ",", (unsigned long)entry->value);
 	}
 
 	emit_obj_refs_plain(refs_table, info->id, "\n\tpids ");

src/btf.c

@@ -653,7 +653,7 @@ static int __btf_dumper_type_only(const struct btf *btf, __u32 type_id,
 	case BTF_KIND_ARRAY:
 		array = (struct btf_array *)(t + 1);
 		BTF_PRINT_TYPE(array->type);
-		BTF_PRINT_ARG("[%d]", array->nelems);
+		BTF_PRINT_ARG("[%u]", array->nelems);
 		break;
 	case BTF_KIND_PTR:
 		BTF_PRINT_TYPE(t->type);