diff -up nfs-utils-2.3.3/nfs.conf.orig nfs-utils-2.3.3/nfs.conf --- nfs-utils-2.3.3/nfs.conf.orig 2021-09-07 13:08:02.683442977 -0400 +++ nfs-utils-2.3.3/nfs.conf 2021-09-07 13:09:33.500797181 -0400 @@ -21,6 +21,7 @@ use-gss-proxy=1 # keytab-file=/etc/krb5.keytab # cred-cache-directory= # preferred-realm= +# set-home=1 # [lockd] # port=0 diff -up nfs-utils-2.3.3/systemd/nfs.conf.man.orig nfs-utils-2.3.3/systemd/nfs.conf.man --- nfs-utils-2.3.3/systemd/nfs.conf.man.orig 2021-09-07 13:08:02.723444014 -0400 +++ nfs-utils-2.3.3/systemd/nfs.conf.man 2021-09-07 13:09:33.500797181 -0400 @@ -222,7 +222,8 @@ Recognized values: .BR rpc-timeout , .BR keytab-file , .BR cred-cache-directory , -.BR preferred-realm . +.BR preferred-realm , +.BR set-home . See .BR rpc.gssd (8) diff -up nfs-utils-2.3.3/utils/gssd/gssd.c.orig nfs-utils-2.3.3/utils/gssd/gssd.c --- nfs-utils-2.3.3/utils/gssd/gssd.c.orig 2021-09-07 13:08:02.709443651 -0400 +++ nfs-utils-2.3.3/utils/gssd/gssd.c 2021-09-07 13:09:33.500797181 -0400 @@ -87,6 +87,8 @@ unsigned int context_timeout = 0; unsigned int rpc_timeout = 5; char *preferred_realm = NULL; char *ccachedir = NULL; +/* set $HOME to "/" by default */ +static bool set_home = true; /* Avoid DNS reverse lookups on server names */ static bool avoid_dns = true; static bool use_gssproxy = false; @@ -885,7 +887,7 @@ sig_die(int signal) static void usage(char *progname) { - fprintf(stderr, "usage: %s [-f] [-l] [-M] [-n] [-v] [-r] [-p pipefsdir] [-k keytab] [-d ccachedir] [-t timeout] [-R preferred realm] [-D]\n", + fprintf(stderr, "usage: %s [-f] [-l] [-M] [-n] [-v] [-r] [-p pipefsdir] [-k keytab] [-d ccachedir] [-t timeout] [-R preferred realm] [-D] [-H]\n", progname); exit(1); } @@ -926,6 +928,7 @@ read_gss_conf(void) preferred_realm = s; use_gssproxy = conf_get_bool("gssd", "use-gss-proxy", use_gssproxy); + set_home = conf_get_bool("gssd", "set-home", set_home); } int @@ -946,7 +949,7 @@ main(int argc, char *argv[]) verbosity = conf_get_num("gssd", "verbosity", verbosity); rpc_verbosity = conf_get_num("gssd", "rpc-verbosity", rpc_verbosity); - while ((opt = getopt(argc, argv, "DfvrlmnMp:k:d:t:T:R:")) != -1) { + while ((opt = getopt(argc, argv, "HDfvrlmnMp:k:d:t:T:R:")) != -1) { switch (opt) { case 'f': fg = 1; @@ -994,6 +997,9 @@ main(int argc, char *argv[]) case 'D': avoid_dns = false; break; + case 'H': + set_home = false; + break; default: usage(argv[0]); break; @@ -1003,13 +1009,19 @@ main(int argc, char *argv[]) /* * Some krb5 routines try to scrape info out of files in the user's * home directory. This can easily deadlock when that homedir is on a - * kerberized NFS mount. By setting $HOME unconditionally to "/", we - * prevent this behavior in routines that use $HOME in preference to - * the results of getpw*. + * kerberized NFS mount. By setting $HOME to "/" by default, we prevent + * this behavior in routines that use $HOME in preference to the results + * of getpw*. + * + * Some users do not use Kerberized home dirs and need $HOME to remain + * unchanged. Those users can leave $HOME unchanged by setting set_home + * to false. */ - if (setenv("HOME", "/", 1)) { - printerr(0, "gssd: Unable to set $HOME: %s\n", strerror(errno)); - exit(1); + if (set_home) { + if (setenv("HOME", "/", 1)) { + printerr(0, "gssd: Unable to set $HOME: %s\n", strerror(errno)); + exit(1); + } } if (use_gssproxy) { diff -up nfs-utils-2.3.3/utils/gssd/gssd.man.orig nfs-utils-2.3.3/utils/gssd/gssd.man --- nfs-utils-2.3.3/utils/gssd/gssd.man.orig 2021-09-07 13:08:02.670442640 -0400 +++ nfs-utils-2.3.3/utils/gssd/gssd.man 2021-09-07 13:09:33.500797181 -0400 @@ -8,7 +8,7 @@ rpc.gssd \- RPCSEC_GSS daemon .SH SYNOPSIS .B rpc.gssd -.RB [ \-DfMnlvr ] +.RB [ \-DfMnlvrH ] .RB [ \-k .IR keytab ] .RB [ \-p @@ -297,6 +297,16 @@ The default timeout is set to 5 seconds. If you get messages like "WARNING: can't create tcp rpc_clnt to server %servername% for user with uid %uid%: RPC: Remote system error - Connection timed out", you should consider an increase of this timeout. +.TP +.B -H +Avoids setting $HOME to "/". This allows rpc.gssd to read per user k5identity +files versus trying to read /.k5identity for each user. + +If +.B \-H +is not set, rpc.gssd will use the first match found in +/var/kerberos/krb5/user/$EUID/client.keytab and will not use a principal based on +host and/or service parameters listed in $HOME/.k5identity. .SH CONFIGURATION FILE Many of the options that can be set on the command line can also be controlled through values set in the @@ -354,6 +364,13 @@ Equivalent to .B preferred-realm Equivalent to .BR -R . +.TP +.B set-home +Setting to +.B false +is equivalent to providing the +.B -H +flag. .P In addtion, the following value is recognized from the .B [general]