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[packages/openssh.git] / openssh-chroot.patch
1 --- openssh-4.4p1/servconf.c.orig       2006-08-18 16:23:15.000000000 +0200
2 +++ openssh-4.4p1/servconf.c    2006-10-05 10:11:17.065971000 +0200
3 @@ -56,7 +56,9 @@
4  
5         /* Portable-specific options */
6         options->use_pam = -1;
7 -
8 +       
9 +       options->use_chroot = -1;
10 +       
11         /* Standard Options */
12         options->num_ports = 0;
13         options->ports_from_cmdline = 0;
14 @@ -131,6 +133,9 @@
15         if (options->use_pam == -1)
16                 options->use_pam = 0;
17  
18 +       if (options->use_chroot == -1)
19 +               options->use_chroot = 0;
20 +       
21         /* Standard Options */
22         if (options->protocol == SSH_PROTO_UNKNOWN)
23                 options->protocol = SSH_PROTO_1|SSH_PROTO_2;
24 @@ -270,6 +275,7 @@
25         sBadOption,             /* == unknown option */
26         /* Portable-specific options */
27         sUsePAM,
28 +       sUseChroot,
29         /* Standard Options */
30         sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
31         sPermitRootLogin, sLogFacility, sLogLevel,
32 @@ -312,6 +318,11 @@
33  #else
34         { "usepam", sUnsupported, SSHCFG_GLOBAL },
35  #endif
36 +#ifdef CHROOT
37 +       { "usechroot", sUseChroot, SSHCFG_GLOBAL },
38 +#else
39 +       { "usechroot", sUnsupported, SSHCFG_GLOBAL },
40 +#endif /* CHROOT */
41         { "pamauthenticationviakbdint", sDeprecated, SSHCFG_GLOBAL },
42         /* Standard Options */
43         { "port", sPort, SSHCFG_GLOBAL },
44 @@ -662,6 +673,10 @@
45                 intptr = &options->use_pam;
46                 goto parse_flag;
47  
48 +       case sUseChroot:
49 +               intptr = &options->use_chroot;
50 +               goto parse_flag;
51 +
52         /* Standard Options */
53         case sBadOption:
54                 return -1;
55 --- openssh-3.7.1p2/servconf.h  2003-09-02 14:58:22.000000000 +0200
56 +++ openssh-3.7.1p2.pius/servconf.h     2003-10-07 20:49:08.000000000 +0200
57 @@ -109,6 +109,7 @@
58         int     max_startups_rate;
59         int     max_startups;
60         char   *banner;                 /* SSH-2 banner message */
61 +       int     use_chroot;             /* Enable chrooted enviroment support */
62         int     use_dns;
63         int     client_alive_interval;  /*
64                                          * poke the client this often to
65 --- ./session.c.org     2008-05-05 16:22:11.935003283 +0200
66 +++ ./session.c 2008-05-05 16:32:50.025507650 +0200
67 @@ -1492,6 +1492,10 @@ do_setusercontext(struct passwd *pw)
68  #ifdef USE_LIBIAF
69         int doing_chroot = 0;
70  #endif
71 +#ifdef CHROOT
72 +       char *user_dir;
73 +       char *new_root;
74 +#endif /* CHROOT */
75  
76         platform_setusercontext(pw);
77  
78 @@ -1534,6 +1538,25 @@ do_setusercontext(struct passwd *pw)
79  #ifdef USE_LIBIAF
80                         doing_chroot = 1;
81  #endif
82 +#ifdef CHROOT
83 +               } else if (options.use_chroot) {
84 +                       user_dir = xstrdup(pw->pw_dir);
85 +                       new_root = user_dir + 1;
86 +
87 +                       while((new_root = strchr(new_root, '.')) != NULL) {
88 +                               new_root--;
89 +                               if(strncmp(new_root, "/./", 3) == 0) {
90 +                                       *new_root = '\0';
91 +                                       new_root += 2;
92 +
93 +                                       if(chroot(user_dir) != 0)
94 +                                               fatal("Couldn't chroot to user directory %s", user_dir);
95 +                                       pw->pw_dir = new_root;
96 +                                       break;
97 +                               }
98 +                               new_root += 2;
99 +                       }
100 +#endif /* CHROOT */
101                 }
102  
103  #ifdef HAVE_LOGIN_CAP
104 --- openssh-3.7.1p2/sshd_config 2003-09-02 14:51:18.000000000 +0200
105 +++ openssh-3.7.1p2.pius/sshd_config    2003-10-07 20:49:08.000000000 +0200
106 @@ -91,6 +91,10 @@
107  # and ChallengeResponseAuthentication to 'no'.
108  UsePAM yes
109  
110 +# Set this to 'yes' to enable support for chrooted user environment.
111 +# You must create such environment before you can use this feature.
112 +#UseChroot yes
113 +
114  #AllowAgentForwarding yes
115  # Security advisory:
116  # http://securitytracker.com/alerts/2004/Sep/1011143.html
117 --- openssh-4.4p1/sshd_config.0.orig    2006-09-26 13:03:48.000000000 +0200
118 +++ openssh-4.4p1/sshd_config.0 2006-10-05 10:11:41.615971000 +0200
119 @@ -451,6 +451,16 @@
120               To disable TCP keepalive messages, the value should be set to
121               ``no''.
122  
123 +     UseChroot
124 +             Specifies whether to use chroot-jail environment with ssh/sftp,
125 +             i.e. restrict users to a particular area in the filesystem. This
126 +             is done by setting user home directory to, for example,
127 +             /path/to/chroot/./home/username.  sshd looks for a '.' in the
128 +             users home directory, then calls chroot(2) to whatever directory
129 +             was before the . and continues with the normal ssh functionality.
130 +             For this to work properly you have to create special chroot-jail
131 +             environment in a /path/to/chroot directory.
132 +
133       UseDNS  Specifies whether sshd(8) should look up the remote host name and
134               check that the resolved host name for the remote IP address maps
135               back to the very same IP address.  The default is ``yes''.
136 --- openssh-3.8p1/sshd_config.5.orig    2004-02-18 04:31:24.000000000 +0100
137 +++ openssh-3.8p1/sshd_config.5 2004-02-25 21:17:23.000000000 +0100
138 @@ -552,6 +552,16 @@
139  The possible values are: DAEMON, USER, AUTH, LOCAL0, LOCAL1, LOCAL2,
140  LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7.
141  The default is AUTH.
142 +.It Cm UseChroot
143 +Specifies whether to use chroot-jail environment with ssh/sftp, i.e. restrict
144 +users to a particular area in the filesystem. This is done by setting user
145 +home directory to, for example, /path/to/chroot/./home/username.
146 +.Nm sshd
147 +looks for a '.' in the users home directory, then calls
148 +.Xr chroot 2
149 +to whatever directory was before the . and continues with the normal ssh
150 +functionality. For this to work properly you have to create special chroot-jail
151 +environment in a /path/to/chroot directory.
152  .It Cm TCPKeepAlive
153  Specifies whether the system should send TCP keepalive messages to the
154  other side.
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