From a8c8b888d4bc9152a17cba6fb0a58856f53d3ff8 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 05:20:40 +0200
Subject: Adding upstream version 4.3+20240412.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 policy.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 93 insertions(+), 17 deletions(-)

(limited to 'policy.c')

diff --git a/policy.c b/policy.c
index eee9ef6..dfaafdc 100644
--- a/policy.c
+++ b/policy.c
@@ -365,7 +365,6 @@ struct dev_policy *path_policy(char **paths, char *type)
 {
 	struct pol_rule *rules;
 	struct dev_policy *pol = NULL;
-	int i;
 
 	rules = config_rules;
 
@@ -380,23 +379,104 @@ struct dev_policy *path_policy(char **paths, char *type)
 		rules = rules->next;
 	}
 
-	/* Now add any metadata-specific internal knowledge
-	 * about this path
-	 */
-	for (i=0; paths && paths[0] && superlist[i]; i++)
-		if (superlist[i]->get_disk_controller_domain) {
-			const char *d =
-				superlist[i]->get_disk_controller_domain(
-					paths[0]);
-			if (d)
-				pol_new(&pol, pol_domain, d, superlist[i]->name);
-		}
-
 	pol_sort(&pol);
 	pol_dedup(pol);
 	return pol;
 }
 
+/**
+ * drive_test_and_add_policies() - get policies for drive and add them to pols.
+ * @st: supertype.
+ * @pols: pointer to pointer of first list entry, cannot be NULL, may point to NULL.
+ * @fd: device descriptor.
+ * @verbose: verbose flag.
+ *
+ * If supertype doesn't support this functionality return success. Use metadata handler to get
+ * policies.
+ */
+mdadm_status_t drive_test_and_add_policies(struct supertype *st, dev_policy_t **pols, int fd,
+					   const int verbose)
+{
+	if (!st->ss->test_and_add_drive_policies)
+		return MDADM_STATUS_SUCCESS;
+
+	if (st->ss->test_and_add_drive_policies(pols, fd, verbose) == MDADM_STATUS_SUCCESS) {
+		/* After successful call list cannot be empty */
+		assert(*pols);
+		return MDADM_STATUS_SUCCESS;
+	}
+
+	return MDADM_STATUS_ERROR;
+}
+
+/**
+ * sysfs_test_and_add_policies() - get policies for mddev and add them to pols.
+ * @st: supertype.
+ * @pols: pointer to pointer of first list entry, cannot be NULL, may point to NULL.
+ * @mdi: mdinfo describes the MD array, must have GET_DISKS option.
+ * @verbose: verbose flag.
+ *
+ * If supertype doesn't support this functionality return success. To get policies, all disks
+ * connected to mddev are analyzed.
+ */
+mdadm_status_t sysfs_test_and_add_drive_policies(struct supertype *st, dev_policy_t **pols,
+						 struct mdinfo *mdi, const int verbose)
+{
+	struct mdinfo *sd;
+
+	if (!st->ss->test_and_add_drive_policies)
+		return MDADM_STATUS_SUCCESS;
+
+	for (sd = mdi->devs; sd; sd = sd->next) {
+		char *devpath = map_dev(sd->disk.major, sd->disk.minor, 0);
+		int fd = dev_open(devpath, O_RDONLY);
+		int rv;
+
+		if (!is_fd_valid(fd)) {
+			pr_err("Cannot open fd for %s\n", devpath);
+			return MDADM_STATUS_ERROR;
+		}
+
+		rv = drive_test_and_add_policies(st, pols, fd, verbose);
+		close(fd);
+
+		if (rv)
+			return MDADM_STATUS_ERROR;
+	}
+
+	return MDADM_STATUS_SUCCESS;
+}
+
+/**
+ * mddev_test_and_add_policies() - get policies for mddev and add them to pols.
+ * @st: supertype.
+ * @pols: pointer to pointer of first list entry, cannot be NULL, may point to NULL.
+ * @array_fd: MD device descriptor.
+ * @verbose: verbose flag.
+ *
+ * If supertype doesn't support this functionality return success. Use fd to extract disks.
+ */
+mdadm_status_t mddev_test_and_add_drive_policies(struct supertype *st, dev_policy_t **pols,
+						 int array_fd, const int verbose)
+{
+	struct mdinfo *sra;
+	int ret;
+
+	if (!st->ss->test_and_add_drive_policies)
+		return MDADM_STATUS_SUCCESS;
+
+	sra = sysfs_read(array_fd, NULL, GET_DEVS);
+	if (!sra) {
+		pr_err("Cannot load sysfs for %s\n", fd2devnm(array_fd));
+		return MDADM_STATUS_ERROR;
+	}
+
+	ret = sysfs_test_and_add_drive_policies(st, pols, sra, verbose);
+
+	sysfs_free(sra);
+	return ret;
+}
+
 void pol_add(struct dev_policy **pol,
 		    char *name, char *val,
 		    char *metadata)
@@ -679,7 +759,6 @@ int domain_test(struct domainlist *dom, struct dev_policy *pol,
 	 *  1:  has domains, all match
 	 */
 	int found_any = -1;
-	int has_one_domain = 1;
 	struct dev_policy *p;
 
 	pol = pol_find(pol, pol_domain);
@@ -689,9 +768,6 @@ int domain_test(struct domainlist *dom, struct dev_policy *pol,
 			dom = dom->next;
 		if (!dom || strcmp(dom->dom, p->value) != 0)
 			return 0;
-		if (has_one_domain && metadata && strcmp(metadata, "imsm") == 0)
-			found_any = -1;
-		has_one_domain = 0;
 	}
 	return found_any;
 }
-- 
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