diff mbox series

Updated cifs new mount API prep patches

Message ID CAH2r5muuy22vvUvJuz8njz3ymkign0BpNv=Xgj6jG7zqXhAZmA@mail.gmail.com
State New
Headers show
Series Updated cifs new mount API prep patches | expand

Commit Message

Steve French Oct. 21, 2020, 7:25 p.m. UTC 
As Aurelien and others had mentioned, shrinking fs/cifs/connect.c by
moving mount related functions (to fs_context.c and fs_context.h)
helps make fs/cifs/connect.c more readable (see attached patch series)
but also will make it easier to review the future patches to move
cifs.ko to the new API.   These are low risk and will make the mount
code easier to maintain. These four don't change any existing
function.

Comments

Aurélien Aptel Oct. 22, 2020, 10:15 a.m. UTC | #1 
Steve French <smfrench@gmail.com> writes:
> As Aurelien and others had mentioned, shrinking fs/cifs/connect.c by
> moving mount related functions (to fs_context.c and fs_context.h)
> helps make fs/cifs/connect.c more readable (see attached patch series)
> but also will make it easier to review the future patches to move
> cifs.ko to the new API.   These are low risk and will make the mount
> code easier to maintain. These four don't change any existing
> function.

Reviewed-by: Aurelien Aptel <aaptel@suse.com>
diff mbox series

Patch

From ea963ab78ae4e6bed8100032220a275b8f09e22d Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <lsahlber@redhat.com>
Date: Wed, 21 Oct 2020 10:37:11 +1000
Subject: [PATCH 2/4] cifs: move security mount options into fs_context.ch

This patch moves the parsing of security mount options into
fs_context.ch.
There are no changes to any logic.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
---
 fs/cifs/connect.c    | 85 +-------------------------------------------
 fs/cifs/fs_context.c | 76 +++++++++++++++++++++++++++++++++++++++
 fs/cifs/fs_context.h | 20 ++++++++++-
 3 files changed, 96 insertions(+), 85 deletions(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 3a9980bf0d6e..c2a92e26fef4 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -61,6 +61,7 @@ 
 #ifdef CONFIG_CIFS_DFS_UPCALL
 #include "dfs_cache.h"
 #endif
+#include "fs_context.h"
 
 extern mempool_t *cifs_req_poolp;
 extern bool disable_legacy_dialects;
@@ -279,33 +280,6 @@  static const match_table_t cifs_mount_option_tokens = {
 	{ Opt_err, NULL }
 };
 
-enum {
-	Opt_sec_krb5, Opt_sec_krb5i, Opt_sec_krb5p,
-	Opt_sec_ntlmsspi, Opt_sec_ntlmssp,
-	Opt_ntlm, Opt_sec_ntlmi, Opt_sec_ntlmv2,
-	Opt_sec_ntlmv2i, Opt_sec_lanman,
-	Opt_sec_none,
-
-	Opt_sec_err
-};
-
-static const match_table_t cifs_secflavor_tokens = {
-	{ Opt_sec_krb5, "krb5" },
-	{ Opt_sec_krb5i, "krb5i" },
-	{ Opt_sec_krb5p, "krb5p" },
-	{ Opt_sec_ntlmsspi, "ntlmsspi" },
-	{ Opt_sec_ntlmssp, "ntlmssp" },
-	{ Opt_ntlm, "ntlm" },
-	{ Opt_sec_ntlmi, "ntlmi" },
-	{ Opt_sec_ntlmv2, "nontlm" },
-	{ Opt_sec_ntlmv2, "ntlmv2" },
-	{ Opt_sec_ntlmv2i, "ntlmv2i" },
-	{ Opt_sec_lanman, "lanman" },
-	{ Opt_sec_none, "none" },
-
-	{ Opt_sec_err, NULL }
-};
-
 /* cache flavors */
 enum {
 	Opt_cache_loose,
@@ -1372,63 +1346,6 @@  static int get_option_gid(substring_t args[], kgid_t *result)
 	return 0;
 }
 
-static int cifs_parse_security_flavors(char *value,
-				       struct smb_vol *vol)
-{
-
-	substring_t args[MAX_OPT_ARGS];
-
-	/*
-	 * With mount options, the last one should win. Reset any existing
-	 * settings back to default.
-	 */
-	vol->sectype = Unspecified;
-	vol->sign = false;
-
-	switch (match_token(value, cifs_secflavor_tokens, args)) {
-	case Opt_sec_krb5p:
-		cifs_dbg(VFS, "sec=krb5p is not supported!\n");
-		return 1;
-	case Opt_sec_krb5i:
-		vol->sign = true;
-		fallthrough;
-	case Opt_sec_krb5:
-		vol->sectype = Kerberos;
-		break;
-	case Opt_sec_ntlmsspi:
-		vol->sign = true;
-		fallthrough;
-	case Opt_sec_ntlmssp:
-		vol->sectype = RawNTLMSSP;
-		break;
-	case Opt_sec_ntlmi:
-		vol->sign = true;
-		fallthrough;
-	case Opt_ntlm:
-		vol->sectype = NTLM;
-		break;
-	case Opt_sec_ntlmv2i:
-		vol->sign = true;
-		fallthrough;
-	case Opt_sec_ntlmv2:
-		vol->sectype = NTLMv2;
-		break;
-#ifdef CONFIG_CIFS_WEAK_PW_HASH
-	case Opt_sec_lanman:
-		vol->sectype = LANMAN;
-		break;
-#endif
-	case Opt_sec_none:
-		vol->nullauth = 1;
-		break;
-	default:
-		cifs_dbg(VFS, "bad security option: %s\n", value);
-		return 1;
-	}
-
-	return 0;
-}
-
 static int
 cifs_parse_cache_flavor(char *value, struct smb_vol *vol)
 {
diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index f50dfc2d2e44..dd9da734e346 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -6,3 +6,79 @@ 
  *              David Howells <dhowells@redhat.com>
  */
 
+#include "cifsglob.h"
+#include "cifs_debug.h"
+#include "fs_context.h"
+
+static const match_table_t cifs_secflavor_tokens = {
+	{ Opt_sec_krb5, "krb5" },
+	{ Opt_sec_krb5i, "krb5i" },
+	{ Opt_sec_krb5p, "krb5p" },
+	{ Opt_sec_ntlmsspi, "ntlmsspi" },
+	{ Opt_sec_ntlmssp, "ntlmssp" },
+	{ Opt_ntlm, "ntlm" },
+	{ Opt_sec_ntlmi, "ntlmi" },
+	{ Opt_sec_ntlmv2, "nontlm" },
+	{ Opt_sec_ntlmv2, "ntlmv2" },
+	{ Opt_sec_ntlmv2i, "ntlmv2i" },
+	{ Opt_sec_lanman, "lanman" },
+	{ Opt_sec_none, "none" },
+
+	{ Opt_sec_err, NULL }
+};
+
+int cifs_parse_security_flavors(char *value, struct smb_vol *vol)
+{
+
+	substring_t args[MAX_OPT_ARGS];
+
+	/*
+	 * With mount options, the last one should win. Reset any existing
+	 * settings back to default.
+	 */
+	vol->sectype = Unspecified;
+	vol->sign = false;
+
+	switch (match_token(value, cifs_secflavor_tokens, args)) {
+	case Opt_sec_krb5p:
+		cifs_dbg(VFS, "sec=krb5p is not supported!\n");
+		return 1;
+	case Opt_sec_krb5i:
+		vol->sign = true;
+		fallthrough;
+	case Opt_sec_krb5:
+		vol->sectype = Kerberos;
+		break;
+	case Opt_sec_ntlmsspi:
+		vol->sign = true;
+		fallthrough;
+	case Opt_sec_ntlmssp:
+		vol->sectype = RawNTLMSSP;
+		break;
+	case Opt_sec_ntlmi:
+		vol->sign = true;
+		fallthrough;
+	case Opt_ntlm:
+		vol->sectype = NTLM;
+		break;
+	case Opt_sec_ntlmv2i:
+		vol->sign = true;
+		fallthrough;
+	case Opt_sec_ntlmv2:
+		vol->sectype = NTLMv2;
+		break;
+#ifdef CONFIG_CIFS_WEAK_PW_HASH
+	case Opt_sec_lanman:
+		vol->sectype = LANMAN;
+		break;
+#endif
+	case Opt_sec_none:
+		vol->nullauth = 1;
+		break;
+	default:
+		cifs_dbg(VFS, "bad security option: %s\n", value);
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/fs/cifs/fs_context.h b/fs/cifs/fs_context.h
index 082f286f923e..87747ef7a2d3 100644
--- a/fs/cifs/fs_context.h
+++ b/fs/cifs/fs_context.h
@@ -9,7 +9,25 @@ 
 #ifndef _FS_CONTEXT_H
 #define _FS_CONTEXT_H
 
+#include <linux/parser.h>
+#include "cifsglob.h"
 
+enum cifs_sec_param {
+	Opt_sec_krb5,
+	Opt_sec_krb5i,
+	Opt_sec_krb5p,
+	Opt_sec_ntlmsspi,
+	Opt_sec_ntlmssp,
+	Opt_ntlm,
+	Opt_sec_ntlmi,
+	Opt_sec_ntlmv2,
+	Opt_sec_ntlmv2i,
+	Opt_sec_lanman,
+	Opt_sec_none,
 
-#endif
+	Opt_sec_err
+};
+
+int cifs_parse_security_flavors(char *value, struct smb_vol *vol);
 
+#endif
-- 
2.25.1