Adding upstream version 1.12.upstream/1.12

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/nvme-filters.c b/nvme-filters.c
new file mode 100644
index 0000000..a4133f8
--- /dev/null
+++ b/nvme-filters.c
@@ -0,0 +1,88 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "nvme.h"
+
+/* global, used for controller specific namespace filter */
+int current_index;
+
+int scan_namespace_filter(const struct dirent *d)
+{
+	int i, n;
+
+	if (d->d_name[0] == '.')
+		return 0;
+
+	if (strstr(d->d_name, "nvme"))
+		if (sscanf(d->d_name, "nvme%dn%d", &i, &n) == 2)
+			return 1;
+	return 0;
+}
+
+int scan_ctrl_paths_filter(const struct dirent *d)
+{
+	int id, cntlid, nsid;
+
+	if (d->d_name[0] == '.')
+		return 0;
+
+	if (strstr(d->d_name, "nvme")) {
+		if (sscanf(d->d_name, "nvme%dc%dn%d", &id, &cntlid, &nsid) == 3)
+			return 1;
+		if (sscanf(d->d_name, "nvme%dn%d", &id, &nsid) == 2)
+			return 1;
+	}
+
+	return 0;
+}
+
+int scan_ctrls_filter(const struct dirent *d)
+{
+	int id, nsid;
+
+	if (d->d_name[0] == '.')
+		return 0;
+
+	if (strstr(d->d_name, "nvme")) {
+		if (sscanf(d->d_name, "nvme%dn%d", &id, &nsid) == 2)
+			return 0;
+		if (sscanf(d->d_name, "nvme%dn", &id) == 1)
+			return 1;
+		return 0;
+	}
+
+	return 0;
+}
+
+int scan_subsys_filter(const struct dirent *d)
+{
+	int id;
+
+	if (d->d_name[0] == '.')
+		return 0;
+
+	if (strstr(d->d_name, "nvme-subsys")) {
+		if (sscanf(d->d_name, "nvme-subsys%d", &id) != 1)
+			return 0;
+		return 1;
+	}
+
+	return 0;
+}
+
+int scan_dev_filter(const struct dirent *d)
+{
+	int ctrl, ns, part;
+
+	if (d->d_name[0] == '.')
+		return 0;
+
+	if (strstr(d->d_name, "nvme")) {
+		if (sscanf(d->d_name, "nvme%dn%dp%d", &ctrl, &ns, &part) == 3)
+			return 0;
+		if (sscanf(d->d_name, "nvme%dn%d", &ctrl, &ns) == 2)
+			return ctrl == current_index;
+	}
+	return 0;
+}