Return the smallest value of available non-kernel physical memory and
the static per process data size limit as the amount of available
system memory on OpenBSD.
Signed-off-by: Jonathan Gray <j...@jsg.id.au>
---
src/util/os_misc.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/src/util/os_misc.c b/src/util/os_misc.c
index 581e15f3934..9b13dcdb9f8 100644
--- a/src/util/os_misc.c
+++ b/src/util/os_misc.c
@@ -28,6 +28,7 @@
#include "os_misc.h"
#include "os_file.h"
+#include "macros.h"
#include <stdarg.h>
@@ -57,6 +58,9 @@
# include <log/log.h>
#elif DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS ||
DETECT_OS_HURD
# include <unistd.h>
+#elif DETECT_OS_OPENBSD
+# include <sys/resource.h>
+# include <sys/sysctl.h>
#elif DETECT_OS_APPLE || DETECT_OS_BSD
# include <sys/sysctl.h>
#elif DETECT_OS_HAIKU
@@ -209,6 +213,22 @@ os_get_available_system_memory(uint64_t *size)
free(meminfo);
return false;
+#elif DETECT_OS_OPENBSD
+ struct rlimit rl;
+ int mib[] = { CTL_HW, HW_USERMEM64 };
+ int64_t mem_available;
+ size_t len = sizeof(mem_available);
+
+ /* physmem - wired */
+ if (sysctl(mib, 2, &mem_available, &len, NULL, 0) == -1)
+ return false;
+
+ /* static login.conf limit */
+ if (getrlimit(RLIMIT_DATA, &rl) == -1)
+ return false;
+
+ *size = MIN2(mem_available, rl.rlim_cur);
+ return true;
#else
return false;
#endif
--
2.24.0
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