From 81f9a452639c8f910f9a73fa6687834332bc9c7e Mon Sep 17 00:00:00 2001

Message-Id: <81f9a452639c8f910f9a73fa6687834332bc9c7e@dist-git>

From: Michal Privoznik <mprivozn@redhat.com>

Date: Wed, 25 Jul 2018 08:27:09 +0200

Subject: [PATCH] qemu: Remove unused bypassSecurityDriver from qemuOpenFileAs

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https://bugzilla.redhat.com/show_bug.cgi?id=1589115

This argument is not used anymore. The only function that is

passing non-NULL (qemuDomainSaveMemory) does not actually care

for the value (after 23087cfdb) and every other caller just

passes NULL anyway.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

Reviewed-by: John Ferlan <jferlan@redhat.com>

(cherry picked from commit 8677a476c7e5cbf7b344329d54d0b1a2d666ffc3)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

Reviewed-by: Ján Tomko <jtomko@redhat.com>

---

 src/qemu/qemu_driver.c | 32 +++++++++-----------------------

 1 file changed, 9 insertions(+), 23 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c

index 3158f217fa..e8a595f17e 100644

--- a/src/qemu/qemu_driver.c

+++ b/src/qemu/qemu_driver.c

@@ -152,7 +152,7 @@ static int qemuDomainManagedSaveLoad(virDomainObjPtr vm,

 static int qemuOpenFileAs(uid_t fallback_uid, gid_t fallback_gid,

                           bool dynamicOwnership,

                           const char *path, int oflags,

-                          bool *needUnlink, bool *bypassSecurityDriver);

+                          bool *needUnlink);

 static int qemuGetDHCPInterfaces(virDomainPtr dom,

                                  virDomainObjPtr vm,

@@ -2984,9 +2984,6 @@ qemuCompressGetCommand(virQEMUSaveFormat compression)

  * @path: path to file to open

  * @oflags: flags for opening/creation of the file

  * @needUnlink: set to true if file was created by this function

- * @bypassSecurityDriver: optional pointer to a boolean that will be set to true

- *                        if security driver operations are pointless (due to

- *                        NFS mount)

  *

  * Internal function to properly create or open existing files, with

  * ownership affected by qemu driver setup and domain DAC label.

@@ -3001,8 +2998,7 @@ qemuOpenFile(virQEMUDriverPtr driver,

              virDomainObjPtr vm,

              const char *path,

              int oflags,

-             bool *needUnlink,

-             bool *bypassSecurityDriver)

+             bool *needUnlink)

 {

     int ret = -1;

     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);

@@ -3021,7 +3017,7 @@ qemuOpenFile(virQEMUDriverPtr driver,

         goto cleanup;

     ret = qemuOpenFileAs(user, group, dynamicOwnership,

-                         path, oflags, needUnlink, bypassSecurityDriver);

+                         path, oflags, needUnlink);

  cleanup:

     return ret;

@@ -3031,12 +3027,11 @@ static int

 qemuOpenFileAs(uid_t fallback_uid, gid_t fallback_gid,

                bool dynamicOwnership,

                const char *path, int oflags,

-               bool *needUnlink, bool *bypassSecurityDriver)

+               bool *needUnlink)

 {

     struct stat sb;

     bool is_reg = true;

     bool need_unlink = false;

-    bool bypass_security = false;

     unsigned int vfoflags = 0;

     int fd = -1;

     int path_shared = virFileIsSharedFS(path);

@@ -3134,19 +3129,11 @@ qemuOpenFileAs(uid_t fallback_uid, gid_t fallback_gid,

                                      path);

                 goto cleanup;

             }

-

-            /* Since we had to setuid to create the file, and the fstype

-               is NFS, we assume it's a root-squashing NFS share, and that

-               the security driver stuff would have failed anyway */

-

-            bypass_security = true;

         }

     }

  cleanup:

     if (needUnlink)

         *needUnlink = need_unlink;

-    if (bypassSecurityDriver)

-        *bypassSecurityDriver = bypass_security;

     return fd;

  error:

@@ -3198,7 +3185,6 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,

                      unsigned int flags,

                      qemuDomainAsyncJob asyncJob)

 {

-    bool bypassSecurityDriver = false;

     bool needUnlink = false;

     int ret = -1;

     int fd = -1;

@@ -3218,7 +3204,7 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,

     }

     fd = qemuOpenFile(driver, vm, path,

                       O_WRONLY | O_TRUNC | O_CREAT | directFlag,

-                      &needUnlink, &bypassSecurityDriver);

+                      &needUnlink);

     if (fd < 0)

         goto cleanup;

@@ -3249,7 +3235,7 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,

     if (qemuFileWrapperFDClose(vm, wrapperFd) < 0)

         goto cleanup;

-    if ((fd = qemuOpenFile(driver, vm, path, O_WRONLY, NULL, NULL)) < 0 ||

+    if ((fd = qemuOpenFile(driver, vm, path, O_WRONLY, NULL)) < 0 ||

         virQEMUSaveDataFinish(data, &fd, path) < 0)

         goto cleanup;

@@ -3809,7 +3795,7 @@ doCoreDump(virQEMUDriverPtr driver,

      * created.  */

     if ((fd = qemuOpenFile(driver, vm, path,

                            O_CREAT | O_TRUNC | O_WRONLY | directFlag,

-                           NULL, NULL)) < 0)

+                           NULL)) < 0)

         goto cleanup;

     if (!(wrapperFd = virFileWrapperFdNew(&fd, path, flags)))

@@ -6436,7 +6422,7 @@ qemuDomainSaveImageOpen(virQEMUDriverPtr driver,

     if (!(caps = virQEMUDriverGetCapabilities(driver, false)))

         goto error;

-    if ((fd = qemuOpenFile(driver, NULL, path, oflags, NULL, NULL)) < 0)

+    if ((fd = qemuOpenFile(driver, NULL, path, oflags, NULL)) < 0)

         goto error;

     if (bypass_cache &&

         !(*wrapperFd = virFileWrapperFdNew(&fd, path,

@@ -11880,7 +11866,7 @@ qemuDomainStorageOpenStat(virQEMUDriverPtr driver,

 {

     if (virStorageSourceIsLocalStorage(src)) {

         if ((*ret_fd = qemuOpenFile(driver, vm, src->path, O_RDONLY,

-                                    NULL, NULL)) < 0)

+                                    NULL)) < 0)

             return -1;

         if (fstat(*ret_fd, ret_sb) < 0) {

-- 

2.18.0