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OpenBSD: removes kvm dep

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This commit is contained in:
李通洲
2026-09-11 23:38:10 +08:00
parent 9a9f82b59e
commit f37a5a2543
7 changed files with 132 additions and 108 deletions
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src/detection/processes/processes_obsd.c
+10 -14
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@@ -4,25 +4,22 @@
#include <sys/param.h>
#include <sys/sysctl.h>
#include <kvm.h>
const char* ffDetectProcesses(const FFProcessesOptions* options, FFProcessesResult* result) {
kvm_t* kd = kvm_open(nullptr, nullptr, nullptr, KVM_NO_FILES, nullptr);
if (!kd) {
return "kvm_open() failed";
int request[] = { CTL_KERN, KERN_PROC, (options->countKprocs ? KERN_PROC_KTHREAD : KERN_PROC_ALL) | KERN_PROC_SHOW_THREADS, 0, (int) sizeof(struct kinfo_proc), 0 };
size_t length = 0;
if (sysctl(request, ARRAY_SIZE(request), nullptr, &length, nullptr, 0) != 0) {
return "sysctl({CTL_KERN, KERN_PROC, KERN_PROC_ALL}, nullptr) failed";
}
int count = 0;
// KERN_PROC_ALL returns all user-level processes
// KERN_PROC_KTHREAD returns all processes, including user-level processes (despite the name)
const struct kinfo_proc* procs = kvm_getprocs(kd,
(options->countKprocs ? KERN_PROC_KTHREAD : KERN_PROC_ALL) | KERN_PROC_SHOW_THREADS,
0, sizeof(struct kinfo_proc), &count);
if (!procs) {
kvm_close(kd);
return "kvm_getprocs() failed";
FF_AUTO_FREE struct kinfo_proc* procs = (struct kinfo_proc*) malloc(length);
request[5] = (int) (length / sizeof(struct kinfo_proc)); // count must be non-zero for data fetch
if (sysctl(request, ARRAY_SIZE(request), procs, &length, nullptr, 0) != 0) {
return "sysctl({CTL_KERN, KERN_PROC, KERN_PROC_ALL}, procs) failed";
}
int count = (int) (length / sizeof(struct kinfo_proc));
for (int i = 0; i < count; ++i) {
const struct kinfo_proc* proc = &procs[i];
@@ -32,6 +29,5 @@ const char* ffDetectProcesses(const FFProcessesOptions* options, FFProcessesResu
}
}
kvm_close(kd);
return nullptr;
}