Context |
Check |
Description |
netdev/series_format |
success
|
Posting correctly formatted
|
netdev/tree_selection |
success
|
Clearly marked for bpf-next, async
|
netdev/ynl |
success
|
SINGLE THREAD;
Generated files up to date;
no warnings/errors;
no diff in generated;
|
netdev/fixes_present |
success
|
Fixes tag not required for -next series
|
netdev/header_inline |
success
|
No static functions without inline keyword in header files
|
netdev/build_32bit |
success
|
Errors and warnings before: 1128 this patch: 1128
|
netdev/cc_maintainers |
warning
|
8 maintainers not CCed: sdf@google.com haoluo@google.com martin.lau@linux.dev jolsa@kernel.org kpsingh@kernel.org yonghong.song@linux.dev song@kernel.org john.fastabend@gmail.com
|
netdev/build_clang |
success
|
Errors and warnings before: 1140 this patch: 1140
|
netdev/verify_signedoff |
success
|
Signed-off-by tag matches author and committer
|
netdev/deprecated_api |
success
|
None detected
|
netdev/check_selftest |
success
|
No net selftest shell script
|
netdev/verify_fixes |
success
|
No Fixes tag
|
netdev/build_allmodconfig_warn |
success
|
Errors and warnings before: 1155 this patch: 1155
|
netdev/checkpatch |
warning
|
WARNING: line length of 111 exceeds 80 columns
WARNING: line length of 88 exceeds 80 columns
WARNING: line length of 92 exceeds 80 columns
WARNING: line length of 95 exceeds 80 columns
WARNING: line length of 97 exceeds 80 columns
|
netdev/build_clang_rust |
success
|
No Rust files in patch. Skipping build
|
netdev/kdoc |
success
|
Errors and warnings before: 0 this patch: 0
|
netdev/source_inline |
success
|
Was 0 now: 0
|
bpf/vmtest-bpf-next-PR |
fail
|
PR summary
|
bpf/vmtest-bpf-next-VM_Test-6 |
success
|
Logs for aarch64-gcc / test (test_maps, false, 360) / test_maps on aarch64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-9 |
success
|
Logs for aarch64-gcc / test (test_verifier, false, 360) / test_verifier on aarch64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-8 |
fail
|
Logs for aarch64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on aarch64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-7 |
success
|
Logs for aarch64-gcc / test (test_progs, false, 360) / test_progs on aarch64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-11 |
success
|
Logs for s390x-gcc / build / build for s390x with gcc
|
bpf/vmtest-bpf-next-VM_Test-17 |
success
|
Logs for s390x-gcc / veristat
|
bpf/vmtest-bpf-next-VM_Test-18 |
success
|
Logs for set-matrix
|
bpf/vmtest-bpf-next-VM_Test-19 |
success
|
Logs for x86_64-gcc / build / build for x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-20 |
success
|
Logs for x86_64-gcc / build-release
|
bpf/vmtest-bpf-next-VM_Test-28 |
success
|
Logs for x86_64-llvm-17 / build / build for x86_64 with llvm-17
|
bpf/vmtest-bpf-next-VM_Test-34 |
success
|
Logs for x86_64-llvm-17 / veristat
|
bpf/vmtest-bpf-next-VM_Test-35 |
success
|
Logs for x86_64-llvm-18 / build / build for x86_64 with llvm-18
|
bpf/vmtest-bpf-next-VM_Test-42 |
success
|
Logs for x86_64-llvm-18 / veristat
|
bpf/vmtest-bpf-next-VM_Test-36 |
success
|
Logs for x86_64-llvm-18 / build-release / build for x86_64 with llvm-18 and -O2 optimization
|
bpf/vmtest-bpf-next-VM_Test-21 |
success
|
Logs for x86_64-gcc / test (test_maps, false, 360) / test_maps on x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-26 |
success
|
Logs for x86_64-gcc / test (test_verifier, false, 360) / test_verifier on x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-33 |
success
|
Logs for x86_64-llvm-17 / test (test_verifier, false, 360) / test_verifier on x86_64 with llvm-17
|
bpf/vmtest-bpf-next-VM_Test-22 |
success
|
Logs for x86_64-gcc / test (test_progs, false, 360) / test_progs on x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-24 |
success
|
Logs for x86_64-gcc / test (test_progs_no_alu32_parallel, true, 30) / test_progs_no_alu32_parallel on x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-25 |
success
|
Logs for x86_64-gcc / test (test_progs_parallel, true, 30) / test_progs_parallel on x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-27 |
success
|
Logs for x86_64-gcc / veristat / veristat on x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-31 |
success
|
Logs for x86_64-llvm-17 / test (test_progs, false, 360) / test_progs on x86_64 with llvm-17
|
bpf/vmtest-bpf-next-VM_Test-32 |
fail
|
Logs for x86_64-llvm-17 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-17
|
bpf/vmtest-bpf-next-VM_Test-38 |
success
|
Logs for x86_64-llvm-18 / test (test_progs, false, 360) / test_progs on x86_64 with llvm-18
|
bpf/vmtest-bpf-next-VM_Test-39 |
success
|
Logs for x86_64-llvm-18 / test (test_progs_cpuv4, false, 360) / test_progs_cpuv4 on x86_64 with llvm-18
|
bpf/vmtest-bpf-next-VM_Test-40 |
fail
|
Logs for x86_64-llvm-18 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-18
|
bpf/vmtest-bpf-next-VM_Test-41 |
success
|
Logs for x86_64-llvm-18 / test (test_verifier, false, 360) / test_verifier on x86_64 with llvm-18
|
bpf/vmtest-bpf-next-VM_Test-16 |
success
|
Logs for s390x-gcc / test (test_verifier, false, 360) / test_verifier on s390x with gcc
|
bpf/vmtest-bpf-next-VM_Test-0 |
success
|
Logs for Lint
|
bpf/vmtest-bpf-next-VM_Test-12 |
success
|
Logs for s390x-gcc / build-release
|
bpf/vmtest-bpf-next-VM_Test-13 |
success
|
Logs for set-matrix
|
bpf/vmtest-bpf-next-VM_Test-14 |
success
|
Logs for x86_64-gcc / build / build for x86_64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-15 |
success
|
Logs for x86_64-gcc / build-release
|
bpf/vmtest-bpf-next-VM_Test-1 |
success
|
Logs for ShellCheck
|
bpf/vmtest-bpf-next-VM_Test-3 |
success
|
Logs for Validate matrix.py
|
bpf/vmtest-bpf-next-VM_Test-4 |
success
|
Logs for aarch64-gcc / build / build for aarch64 with gcc
|
bpf/vmtest-bpf-next-VM_Test-5 |
success
|
Logs for aarch64-gcc / build-release
|
bpf/vmtest-bpf-next-VM_Test-2 |
success
|
Logs for Unittests
|
bpf/vmtest-bpf-next-VM_Test-10 |
success
|
Logs for aarch64-gcc / veristat
|
bpf/vmtest-bpf-next-VM_Test-23 |
success
|
Logs for x86_64-llvm-17 / build / build for x86_64 with llvm-17
|
bpf/vmtest-bpf-next-VM_Test-29 |
success
|
Logs for x86_64-llvm-17 / veristat
|
bpf/vmtest-bpf-next-VM_Test-30 |
success
|
Logs for x86_64-llvm-18 / build / build for x86_64 with llvm-18
|
bpf/vmtest-bpf-next-VM_Test-37 |
success
|
Logs for x86_64-llvm-18 / veristat
|
@@ -6784,6 +6784,11 @@ static bool btf_is_dynptr_ptr(const struct btf *btf, const struct btf_type *t)
return false;
}
+enum btf_arg_tag {
+ ARG_TAG_CTX = 0x1,
+ ARG_TAG_NONNULL = 0x2,
+};
+
/* Process BTF of a function to produce high-level expectation of function
* arguments (like ARG_PTR_TO_CTX, or ARG_PTR_TO_MEM, etc). This information
* is cached in subprog info for reuse.
@@ -6865,10 +6870,8 @@ int btf_prepare_func_args(struct bpf_verifier_env *env, int subprog)
* Only PTR_TO_CTX and SCALAR are supported atm.
*/
for (i = 0; i < nargs; i++) {
- bool is_nonnull = false;
const char *tag;
-
- t = btf_type_by_id(btf, args[i].type);
+ u32 tags = 0;
tag = btf_find_decl_tag_value(btf, fn_t, i, "arg:");
if (IS_ERR(tag) && PTR_ERR(tag) == -ENOENT) {
@@ -6886,43 +6889,61 @@ int btf_prepare_func_args(struct bpf_verifier_env *env, int subprog)
bpf_log(log, "arg#%d type tag is not supported in static functions\n", i);
return -EOPNOTSUPP;
}
+
if (strcmp(tag, "ctx") == 0) {
- sub->args[i].arg_type = ARG_PTR_TO_CTX;
- continue;
+ tags |= ARG_TAG_CTX;
+ } else if (strcmp(tag, "nonnull") == 0) {
+ tags |= ARG_TAG_NONNULL;
+ } else {
+ bpf_log(log, "arg#%d has unsupported set of tags\n", i);
+ return -EOPNOTSUPP;
}
- if (strcmp(tag, "nonnull") == 0)
- is_nonnull = true;
}
+ t = btf_type_by_id(btf, args[i].type);
while (btf_type_is_modifier(t))
t = btf_type_by_id(btf, t->type);
- if (btf_type_is_ptr(t) && btf_get_prog_ctx_type(log, btf, t, prog_type, i)) {
+ if (!btf_type_is_ptr(t))
+ goto skip_pointer;
+
+ if ((tags & ARG_TAG_CTX) || btf_get_prog_ctx_type(log, btf, t, prog_type, i)) {
+ if (tags & ~ARG_TAG_CTX) {
+ bpf_log(log, "arg#%d has invalid combination of tags\n", i);
+ return -EINVAL;
+ }
sub->args[i].arg_type = ARG_PTR_TO_CTX;
continue;
}
- if (btf_type_is_ptr(t) && btf_is_dynptr_ptr(btf, t)) {
+ if (btf_is_dynptr_ptr(btf, t)) {
+ if (tags) {
+ bpf_log(log, "arg#%d has invalid combination of tags\n", i);
+ return -EINVAL;
+ }
sub->args[i].arg_type = ARG_PTR_TO_DYNPTR | MEM_RDONLY;
continue;
}
- if (is_global && btf_type_is_ptr(t)) {
+ if (is_global) { /* generic user data pointer */
u32 mem_size;
t = btf_type_skip_modifiers(btf, t->type, NULL);
ref_t = btf_resolve_size(btf, t, &mem_size);
if (IS_ERR(ref_t)) {
- bpf_log(log,
- "arg#%d reference type('%s %s') size cannot be determined: %ld\n",
- i, btf_type_str(t), btf_name_by_offset(btf, t->name_off),
+ bpf_log(log, "arg#%d reference type('%s %s') size cannot be determined: %ld\n",
+ i, btf_type_str(t), btf_name_by_offset(btf, t->name_off),
PTR_ERR(ref_t));
return -EINVAL;
}
- sub->args[i].arg_type = is_nonnull ? ARG_PTR_TO_MEM : ARG_PTR_TO_MEM_OR_NULL;
+ sub->args[i].arg_type = ARG_PTR_TO_MEM | PTR_MAYBE_NULL;
+ if (tags & ARG_TAG_NONNULL)
+ sub->args[i].arg_type &= ~PTR_MAYBE_NULL;
sub->args[i].mem_size = mem_size;
continue;
}
- if (is_nonnull) {
- bpf_log(log, "arg#%d marked as non-null, but is not a pointer type\n", i);
+
+skip_pointer:
+ if (tags) {
+ bpf_log(log, "arg#%d has pointer tag, but is not a pointer type\n", i);
return -EINVAL;
}
if (btf_type_is_int(t) || btf_is_any_enum(t)) {
@@ -20037,7 +20037,6 @@ static int do_check_common(struct bpf_verifier_env *env, int subprog)
state->first_insn_idx = env->subprog_info[subprog].start;
state->last_insn_idx = -1;
-
regs = state->frame[state->curframe]->regs;
if (subprog || env->prog->type == BPF_PROG_TYPE_EXT) {
const char *sub_name = subprog_name(env, subprog);
Add btf_arg_tag flags enum to be able to record multiple tags per argument. Also streamline pointer argument processing some more. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> --- kernel/bpf/btf.c | 53 ++++++++++++++++++++++++++++++------------- kernel/bpf/verifier.c | 1 - 2 files changed, 37 insertions(+), 17 deletions(-)