X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fkernel-ctl%2Fkernel-ctl.c;h=28ed06cbdaa50b5494c698b296e1bc576cdcfd6c;hp=51d01341338441bc3faffbf5f3d9fb5c52b29486;hb=00a620843422e5c972aee0ada2181b811fc81b92;hpb=fac26884aa477a653fb72cc009fb14f970833baf

diff --git a/src/common/kernel-ctl/kernel-ctl.c b/src/common/kernel-ctl/kernel-ctl.c
index 51d013413..28ed06cbd 100644
--- a/src/common/kernel-ctl/kernel-ctl.c
+++ b/src/common/kernel-ctl/kernel-ctl.c
@@ -22,6 +22,7 @@
 #include <sys/ioctl.h>
 #include <string.h>
 #include <common/align.h>
+#include <errno.h>
 
 #include "kernel-ctl.h"
 #include "kernel-ioctl.h"
@@ -298,6 +299,25 @@ int kernctl_stop_session(int fd)
 			LTTNG_KERNEL_SESSION_STOP);
 }
 
+int kernctl_filter(int fd, struct lttng_filter_bytecode *filter)
+{
+	struct lttng_kernel_filter_bytecode *kb;
+	uint32_t len;
+	int ret;
+
+	/* Translate bytecode to kernel bytecode */
+	kb = zmalloc(sizeof(*kb) + filter->len);
+	if (!kb)
+		return -ENOMEM;
+	kb->len = len = filter->len;
+	kb->reloc_offset = filter->reloc_table_offset;
+	kb->seqnum = filter->seqnum;
+	memcpy(kb->data, filter->data, len);
+	ret = ioctl(fd, LTTNG_KERNEL_FILTER, kb);
+	free(kb);
+	return ret;
+}
+
 int kernctl_tracepoint_list(int fd)
 {
 	return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_TRACEPOINT_LIST,