Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Cross-merge bpf fixes after downstream PR. No conflicts. Adjacent changes in: include/linux/bpf.h include/uapi/linux/bpf.h kernel/bpf/btf.c kernel/bpf/helpers.c kernel/bpf/syscall.c kernel/bpf/verifier.c kernel/trace/bpf_trace.c mm/slab_common.c tools/include/uapi/linux/bpf.h tools/testing/selftests/bpf/Makefile

Alexei Starovoitov committed 2 years ago

Commit bfa7b5c2 parents c6fb803 ae90f6a1167 files · +15425 −10300Browse files

Showing the changes to include/uapi (2 of 1167 files). Show all

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2 files

include/uapi/linux/bpf.h +8 −8
include/uapi/linux/ublk_cmd.h +7 −1

include/uapi/linux/bpf.h+8−8

 #define MAX_BPF_ATTACH_TYPE __MAX_BPF_ATTACH_TYPE
+/* Add BPF_LINK_TYPE(type, name) in bpf_types.h to keep bpf_link_type_strs[]
+ * in sync with the definitions below.
+ */
 enum bpf_link_type {
 	BPF_LINK_TYPE_UNSPEC = 0,
 	BPF_LINK_TYPE_RAW_TRACEPOINT = 1,
 	BPF_F_MARK_ENFORCE		= (1ULL << 6),
 };
-/* BPF_FUNC_clone_redirect and BPF_FUNC_redirect flags. */
-enum {
-	BPF_F_INGRESS			= (1ULL << 0),
-};
 /* BPF_FUNC_skb_set_tunnel_key and BPF_FUNC_skb_get_tunnel_key flags. */
 enum {
 	BPF_F_TUNINFO_IPV6		= (1ULL << 0),
 	BPF_F_BPRM_SECUREEXEC	= (1ULL << 0),
 };
-/* Flags for bpf_redirect_map helper */
+/* Flags for bpf_redirect and bpf_redirect_map helpers */
 enum {
-	BPF_F_BROADCAST		= (1ULL << 3),
+	BPF_F_INGRESS		= (1ULL << 0), /* used for skb path */
-	BPF_F_EXCLUDE_INGRESS	= (1ULL << 4),
+	BPF_F_BROADCAST		= (1ULL << 3), /* used for XDP path */
+	BPF_F_EXCLUDE_INGRESS	= (1ULL << 4), /* used for XDP path */
+#define BPF_F_REDIRECT_FLAGS (BPF_F_INGRESS | BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS)
 };
 #define __bpf_md_ptr(type, name)	\

include/uapi/linux/ublk_cmd.h+7−1

 /* use ioctl encoding for uring command */
 #define UBLK_F_CMD_IOCTL_ENCODE	(1UL << 6)
-/* Copy between request and user buffer by pread()/pwrite() */
+/*
+ *  Copy between request and user buffer by pread()/pwrite()
+ *
+ *  Not available for UBLK_F_UNPRIVILEGED_DEV, otherwise userspace may
+ *  deceive us by not filling request buffer, then kernel uninitialized
+ *  data may be leaked.
+ */
 #define UBLK_F_USER_COPY	(1UL << 7)
 /*