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-rw-r--r--libglusterfs/src/common-utils.c260
-rw-r--r--libglusterfs/src/common-utils.h21
-rw-r--r--libglusterfs/src/glusterfs.h6
-rw-r--r--libglusterfs/src/mem-types.h2
-rw-r--r--libglusterfs/src/stack.h1
5 files changed, 289 insertions, 1 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 2dcd54f1829..a89e120c0fb 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -34,6 +34,7 @@
#if defined(GF_BSD_HOST_OS) || defined(GF_DARWIN_HOST_OS)
#include <sys/sysctl.h>
#endif
+#include <libgen.h>
#include "compat-errno.h"
#include "logging.h"
@@ -210,7 +211,7 @@ out:
}
/**
- * gf_resolve_parent_path -- Given a path, returns an allocated string
+ * gf_resolve_path_parent -- Given a path, returns an allocated string
* containing the parent's path.
* @path: Path to parse
* @return: The parent path if found, NULL otherwise
@@ -359,6 +360,135 @@ err:
return -1;
}
+/**
+ * gf_dnscache_init -- Initializes a dnscache struct and sets the ttl
+ * to the specified value in the parameter.
+ *
+ * @ttl: the TTL in seconds
+ * @return: SUCCESS: Pointer to an allocated dnscache struct
+ * FAILURE: NULL
+ */
+struct dnscache *
+gf_dnscache_init (time_t ttl)
+{
+ struct dnscache *cache = GF_MALLOC (sizeof (*cache),
+ gf_common_mt_dnscache);
+ cache->cache_dict = NULL;
+ cache->ttl = ttl;
+ return cache;
+}
+
+/**
+ * gf_dnscache_entry_init -- Initialize a dnscache entry
+ *
+ * @return: SUCCESS: Pointer to an allocated dnscache entry struct
+ * FAILURE: NULL
+ */
+struct dnscache_entry *
+gf_dnscache_entry_init ()
+{
+ struct dnscache_entry *entry = GF_CALLOC (1, sizeof (*entry),
+ gf_common_mt_dnscache_entry);
+ return entry;
+}
+
+/**
+ * gf_dnscache_entry_deinit -- Free memory used by a dnscache entry
+ *
+ * @entry: Pointer to deallocate
+ */
+void
+gf_dnscache_entry_deinit (struct dnscache_entry *entry)
+{
+ GF_FREE (entry->ip);
+ GF_FREE (entry->fqdn);
+ GF_FREE (entry);
+}
+
+/**
+ * gf_rev_dns_lookup -- Perform a reverse DNS lookup on the IP address.
+ *
+ * @ip: The IP address to perform a reverse lookup on
+ *
+ * @return: success: Allocated string containing the hostname
+ * failure: NULL
+ */
+char *
+gf_rev_dns_lookup_cached (const char *ip, struct dnscache *dnscache)
+{
+ char *fqdn = NULL;
+ int ret = 0;
+ dict_t *cache = NULL;
+ data_t *entrydata = NULL;
+ struct dnscache_entry *dnsentry = NULL;
+ gf_boolean_t from_cache = _gf_false;
+
+ if (!dnscache)
+ goto out;
+
+ if (!dnscache->cache_dict) {
+ dnscache->cache_dict = dict_new ();
+ if (!dnscache->cache_dict) {
+ goto out;
+ }
+ }
+ cache = dnscache->cache_dict;
+
+ /* Quick cache lookup to see if we already hold it */
+ entrydata = dict_get (cache, (char *)ip);
+ if (entrydata) {
+ dnsentry = (struct dnscache_entry *)entrydata->data;
+ /* First check the TTL & timestamp */
+ if (time (NULL) - dnsentry->timestamp > dnscache->ttl) {
+ gf_dnscache_entry_deinit (dnsentry);
+ entrydata->data = NULL; /* Mark this as 'null' so
+ * dict_del () doesn't try free
+ * this after we've already
+ * freed it.
+ */
+
+ dict_del (cache, (char *)ip); /* Remove this entry */
+ } else {
+ /* Cache entry is valid, get the FQDN and return */
+ fqdn = dnsentry->fqdn;
+ from_cache = _gf_true; /* Mark this as from cache */
+ goto out;
+ }
+ }
+
+ /* Get the FQDN */
+ ret = gf_get_hostname_from_ip ((char *)ip, &fqdn);
+ if (ret != 0)
+ goto out;
+
+ if (!fqdn) {
+ gf_log_callingfn ("resolver", GF_LOG_CRITICAL,
+ "Allocation failed for the host address");
+ goto out;
+ }
+
+ from_cache = _gf_false;
+out:
+ /* Insert into the cache */
+ if (fqdn && !from_cache) {
+ struct dnscache_entry *entry = gf_dnscache_entry_init ();
+
+ if (!entry) {
+ goto out;
+ }
+ entry->fqdn = fqdn;
+ entry->ip = gf_strdup (ip);
+ if (!ip) {
+ gf_dnscache_entry_deinit (entry);
+ goto out;
+ }
+ entry->timestamp = time (NULL);
+
+ entrydata = bin_to_data (entry, sizeof (*entry));
+ dict_set (cache, (char *)ip, entrydata);
+ }
+ return fqdn;
+}
struct xldump {
int lineno;
@@ -4012,3 +4142,131 @@ _unmask_cancellation (void)
{
(void) pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL);
}
+
+
+const char *
+fop_enum_to_pri_string (glusterfs_fop_t fop)
+{
+ switch (fop) {
+ case GF_FOP_OPEN:
+ case GF_FOP_STAT:
+ case GF_FOP_FSTAT:
+ case GF_FOP_LOOKUP:
+ case GF_FOP_ACCESS:
+ case GF_FOP_READLINK:
+ case GF_FOP_OPENDIR:
+ case GF_FOP_STATFS:
+ case GF_FOP_READDIR:
+ case GF_FOP_READDIRP:
+ return "HIGH";
+
+ case GF_FOP_CREATE:
+ case GF_FOP_FLUSH:
+ case GF_FOP_LK:
+ case GF_FOP_INODELK:
+ case GF_FOP_FINODELK:
+ case GF_FOP_ENTRYLK:
+ case GF_FOP_FENTRYLK:
+ case GF_FOP_UNLINK:
+ case GF_FOP_SETATTR:
+ case GF_FOP_FSETATTR:
+ case GF_FOP_MKNOD:
+ case GF_FOP_MKDIR:
+ case GF_FOP_RMDIR:
+ case GF_FOP_SYMLINK:
+ case GF_FOP_RENAME:
+ case GF_FOP_LINK:
+ case GF_FOP_SETXATTR:
+ case GF_FOP_GETXATTR:
+ case GF_FOP_FGETXATTR:
+ case GF_FOP_FSETXATTR:
+ case GF_FOP_REMOVEXATTR:
+ case GF_FOP_FREMOVEXATTR:
+ case GF_FOP_IPC:
+ return "NORMAL";
+
+ case GF_FOP_READ:
+ case GF_FOP_WRITE:
+ case GF_FOP_FSYNC:
+ case GF_FOP_TRUNCATE:
+ case GF_FOP_FTRUNCATE:
+ case GF_FOP_FSYNCDIR:
+ case GF_FOP_XATTROP:
+ case GF_FOP_FXATTROP:
+ case GF_FOP_RCHECKSUM:
+ case GF_FOP_ZEROFILL:
+ case GF_FOP_FALLOCATE:
+ return "LOW";
+
+ case GF_FOP_NULL:
+ case GF_FOP_FORGET:
+ case GF_FOP_RELEASE:
+ case GF_FOP_RELEASEDIR:
+ case GF_FOP_GETSPEC:
+ case GF_FOP_MAXVALUE:
+ case GF_FOP_DISCARD:
+ return "LEAST";
+ }
+ return "UNKNOWN";
+}
+
+const char *
+fop_enum_to_string (glusterfs_fop_t fop)
+{
+ static const char *const str_map[] = {
+ "NULL",
+ "STAT",
+ "READLINK",
+ "MKNOD",
+ "MKDIR",
+ "UNLINK",
+ "RMDIR",
+ "SYMLINK",
+ "RENAME",
+ "LINK",
+ "TRUNCATE",
+ "OPEN",
+ "READ",
+ "WRITE",
+ "STATFS",
+ "FLUSH",
+ "FSYNC",
+ "SETXATTR",
+ "GETXATTR",
+ "REMOVEXATTR",
+ "OPENDIR",
+ "FSYNCDIR",
+ "ACCESS",
+ "CREATE",
+ "FTRUNCATE",
+ "FSTAT",
+ "LK",
+ "LOOKUP",
+ "READDIR",
+ "INODELK",
+ "FINODELK",
+ "ENTRYLK",
+ "FENTRYLK",
+ "XATTROP",
+ "FXATTROP",
+ "FGETXATTR",
+ "FSETXATTR",
+ "RCHECKSUM",
+ "SETATTR",
+ "FSETATTR",
+ "READDIRP",
+ "FORGET",
+ "RELEASE",
+ "RELEASEDIR",
+ "GETSPEC",
+ "FREMOVEXATTR",
+ "FALLOCATE",
+ "DISCARD",
+ "ZEROFILL",
+ "IPC",
+ "MAXVALUE"};
+ if (fop <= GF_FOP_MAXVALUE)
+ return str_map[fop];
+
+ return "UNKNOWNFOP";
+}
diff --git a/libglusterfs/src/common-utils.h b/libglusterfs/src/common-utils.h
index 77a8cdd51c7..bf574fdabc7 100644
--- a/libglusterfs/src/common-utils.h
+++ b/libglusterfs/src/common-utils.h
@@ -159,6 +159,27 @@ typedef struct dht_changelog_rename_info {
typedef int (*gf_cmp) (void *, void *);
+struct _dict;
+
+struct dnscache {
+ struct _dict *cache_dict;
+ time_t ttl;
+};
+
+struct dnscache_entry {
+ char *ip;
+ char *fqdn;
+ time_t timestamp;
+};
+
+
+struct dnscache *gf_dnscache_init (time_t ttl);
+struct dnscache_entry *gf_dnscache_entry_init ();
+void gf_dnscache_entry_deinit (struct dnscache_entry *entry);
+char *gf_rev_dns_lookup_cached (const char *ip, struct dnscache *dnscache);
+
+char *gf_resolve_path_parent (const char *path);
+
void gf_global_variable_init(void);
int32_t gf_resolve_ip6 (const char *hostname, uint16_t port, int family,
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index 3bc76f6622a..4c7f9f517e3 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -258,6 +258,10 @@
/* NOTE: add members ONLY at the end (just before _MAXVALUE) */
+/*
+ * OTHER NOTE: fop_enum_to_str and fop_enum_to_pri_str (in common-utils.h) also
+ * contain lists of fops, so if you update this list UPDATE THOSE TOO.
+ */
typedef enum {
GF_FOP_NULL = 0,
GF_FOP_STAT,
@@ -312,6 +316,8 @@ typedef enum {
GF_FOP_MAXVALUE,
} glusterfs_fop_t;
+const char *fop_enum_to_pri_string (glusterfs_fop_t fop);
+const char *fop_enum_to_string (glusterfs_fop_t fop);
typedef enum {
GF_MGMT_NULL = 0,
diff --git a/libglusterfs/src/mem-types.h b/libglusterfs/src/mem-types.h
index 84949c61487..70c4ea770d5 100644
--- a/libglusterfs/src/mem-types.h
+++ b/libglusterfs/src/mem-types.h
@@ -128,6 +128,8 @@ enum gf_common_mem_types_ {
gf_common_mt_ereg,
gf_common_mt_wr,
gf_common_mt_rdma_arena_mr,
+ gf_common_mt_dnscache = 115,
+ gf_common_mt_dnscache_entry = 116,
gf_common_mt_parser_t,
gf_common_quota_meta_t,
/*related to gfdb library*/
diff --git a/libglusterfs/src/stack.h b/libglusterfs/src/stack.h
index 5c0655f2ead..43d943c62b6 100644
--- a/libglusterfs/src/stack.h
+++ b/libglusterfs/src/stack.h
@@ -96,6 +96,7 @@ struct _call_stack_t {
uid_t uid;
gid_t gid;
pid_t pid;
+ char identifier[UNIX_PATH_MAX];
uint16_t ngrps;
uint32_t groups_small[SMALL_GROUP_COUNT];
uint32_t *groups_large;
generated by cgit (git 2.34.1) at 2024-11-18 08:17:10 +0000