- djm@cvs.openbsd.org 2008/04/18 12:32:11

[openssh.git] / sftp-server.c

diff --git a/sftp-server.c b/sftp-server.c
index d9549f5bc66c36be0141cd194c41948014662be5..300fd5cfdb192ca72d4abf48237106bcebed11d1 100644 (file)
--- a/sftp-server.c
+++ b/sftp-server.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sftp-server.c,v 1.78 2008/02/27 20:21:15 djm Exp $ */
+/* $OpenBSD: sftp-server.c,v 1.79 2008/04/18 12:32:11 djm Exp $ */
 /*
  * Copyright (c) 2000-2004 Markus Friedl.  All rights reserved.
  *
@@ -23,6 +23,8 @@
 #ifdef HAVE_SYS_TIME_H
 # include <sys/time.h>
 #endif
+#include <sys/mount.h>
+#include <sys/statvfs.h>
 
 #include <dirent.h>
 #include <errno.h>
@@ -475,6 +477,33 @@ send_attrib(u_int32_t id, const Attrib *a)
        buffer_free(&msg);
 }
 
+static void
+send_statvfs(u_int32_t id, struct statvfs *st)
+{
+       Buffer msg;
+       u_int64_t flag;
+
+       flag = (st->f_flag & ST_RDONLY) ? SSH2_FXE_STATVFS_ST_RDONLY : 0;
+       flag |= (st->f_flag & ST_NOSUID) ? SSH2_FXE_STATVFS_ST_NOSUID : 0;
+
+       buffer_init(&msg);
+       buffer_put_char(&msg, SSH2_FXP_EXTENDED_REPLY);
+       buffer_put_int(&msg, id);
+       buffer_put_int(&msg, st->f_bsize);
+       buffer_put_int(&msg, st->f_frsize);
+       buffer_put_int64(&msg, st->f_blocks);
+       buffer_put_int64(&msg, st->f_bfree);
+       buffer_put_int64(&msg, st->f_bavail);
+       buffer_put_int64(&msg, st->f_files);
+       buffer_put_int64(&msg, st->f_ffree);
+       buffer_put_int64(&msg, st->f_favail);
+       buffer_put_int(&msg, st->f_fsid);
+       buffer_put_int(&msg, flag);
+       buffer_put_int(&msg, st->f_namemax);
+       send_msg(&msg);
+       buffer_free(&msg);
+}
+
 /* parse incoming */
 
 static void
@@ -490,6 +519,10 @@ process_init(void)
        /* POSIX rename extension */
        buffer_put_cstring(&msg, "posix-rename@openssh.com");
        buffer_put_cstring(&msg, "1"); /* version */
+       buffer_put_cstring(&msg, "statvfs@openssh.com");
+       buffer_put_cstring(&msg, "1"); /* version */
+       buffer_put_cstring(&msg, "fstatvfs@openssh.com");
+       buffer_put_cstring(&msg, "1"); /* version */
        send_msg(&msg);
        buffer_free(&msg);
 }
@@ -1099,6 +1132,42 @@ process_extended_posix_rename(u_int32_t id)
        xfree(newpath);
 }
 
+static void
+process_extended_statvfs(u_int32_t id)
+{
+       char *path;
+       struct statvfs st;
+
+       path = get_string(NULL);
+       debug3("request %u: statfs", id);
+       logit("statfs \"%s\"", path);
+
+       if (statvfs(path, &st) != 0)
+               send_status(id, errno_to_portable(errno));
+       else
+               send_statvfs(id, &st);
+        xfree(path);
+}
+
+static void
+process_extended_fstatvfs(u_int32_t id)
+{
+       int handle, fd;
+       struct statvfs st;
+
+       handle = get_handle();
+       debug("request %u: fstatvfs \"%s\" (handle %u)",
+           id, handle_to_name(handle), handle);
+       if ((fd = handle_to_fd(handle)) < 0) {
+               send_status(id, SSH2_FX_FAILURE);
+               return;
+       }
+       if (fstatvfs(fd, &st) != 0)
+               send_status(id, errno_to_portable(errno));
+       else
+               send_statvfs(id, &st);
+}
+
 static void
 process_extended(void)
 {
@@ -1109,6 +1178,10 @@ process_extended(void)
        request = get_string(NULL);
        if (strcmp(request, "posix-rename@openssh.com") == 0)
                process_extended_posix_rename(id);
+       else if (strcmp(request, "statvfs@openssh.com") == 0)
+               process_extended_statvfs(id);
+       else if (strcmp(request, "fstatvfs@openssh.com") == 0)
+               process_extended_fstatvfs(id);
        else
                send_status(id, SSH2_FX_OP_UNSUPPORTED);        /* MUST */
        xfree(request);