Implement support for lttng-modules syscall filtering

[lttng-tools.git] / src / common / kernel-ctl / kernel-ctl.c

diff --git a/src/common/kernel-ctl/kernel-ctl.c b/src/common/kernel-ctl/kernel-ctl.c
index d153a1cff7dafbbc3460f7aac1baae55042263fd..ce8d8a0eb1f4ec4df60d388589be6ab209673b4f 100644 (file)
--- a/src/common/kernel-ctl/kernel-ctl.c
+++ b/src/common/kernel-ctl/kernel-ctl.c
@@ -139,6 +139,30 @@ int kernctl_create_channel(int fd, struct lttng_channel_attr *chops)
        return ioctl(fd, LTTNG_KERNEL_CHANNEL, &channel);
 }
 
+int kernctl_enable_syscall(int fd, const char *syscall_name)
+{
+       struct lttng_kernel_event event;
+
+       memset(&event, 0, sizeof(event));
+       strncpy(event.name, syscall_name, sizeof(event.name));
+       event.name[sizeof(event.name) - 1] = '\0';
+       event.instrumentation = LTTNG_KERNEL_SYSCALL;
+       event.u.syscall.disable = 0;
+       return ioctl(fd, LTTNG_KERNEL_EVENT, &event);
+}
+
+int kernctl_disable_syscall(int fd, const char *syscall_name)
+{
+       struct lttng_kernel_event event;
+
+       memset(&event, 0, sizeof(event));
+       strncpy(event.name, syscall_name, sizeof(event.name));
+       event.name[sizeof(event.name) - 1] = '\0';
+       event.instrumentation = LTTNG_KERNEL_SYSCALL;
+       event.u.syscall.disable = 1;
+       return ioctl(fd, LTTNG_KERNEL_EVENT, &event);
+}
+
 int kernctl_create_stream(int fd)
 {
        return compat_ioctl_no_arg(fd, LTTNG_KERNEL_OLD_STREAM,