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1.2 ! deraadt 4: <title>OpenBSD AnonCVS</title>
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14:
15: <h1>OpenBSD</h1>
16: <h3>CVS Access:</h3>
17: CVS is used to manage the OpenBSD source tree. This allows
18: developers to work on a local source tree and commit their changes when
19: ready. Also <strong>anyone</strong> can edit source files on their
20: local machines, and automatically track and merge in any changes made
21: in the OpenBSD CVS repository. Additionally they can easily see the
22: logs of, check out, or "diff" the source files in the OpenBSD source
23: tree.
24: </p>
25:
26: <p>
27: Most importantly, the <strong>anoncvs</strong> service does NOT
28: delete the changes you make in your local copy of the source tree --
29: read on for more details!
30: </p>
31:
32: <p>
33: The latest version of CVS is available at
34: <a href=ftp://ftp.cyclic.com/pub/cvs/>Cyclic</a>.
35: Versions earlier than 1.6 are not recommended, and may not work.
36: If you already have OpenBSD installed, CVS is included.
37: </p>
38:
39: <p>
40: There are two levels of source tree access:
41: </p>
42:
43: <dl>
44: <dt><strong>Read-write access for developers:</strong>
45: <dd>Developers who need to commit changes to the source tree must have
46: an account on the OpenBSD machines. Getting this access will be a
47: natural result of working on the sources with other OpenBSD developers.
48: If someone does some good work and shows they can work with the team,
49: they will get an account.
50: </dl>
51:
52: <dl>
53: <dt><strong>Read-only access for everyone:</strong>
54: <dd>Anyone can access the read-only CVS repositories. These copies
55: of the read-write CVS repository are mirrored often. To use one,
56: set your <strong>CVSROOT</strong> environment variable to one of
57: the following values:
58: <ul>
59: <p>
60: <li><strong>CVSROOT=anoncvs@anoncvs.usa.openbsd.org:/cvs</strong><br>
61: Host also known as <strong>anoncvs.openbsd.org</strong> and
62: <strong>eap.ccrc.wustl.edu</strong>.<br>
63: located at Washington University, St. Louis, mid-west USA.<br>
64: maintained by <a href=mailto:chuck@maria.wustl.edu>Chuck Cranor</a>.<br>
65: protocols: rsh, ssh, ssh port 2022.<br>
66: updated every 4 hours.<br>
67: <p>
68: <li><strong>CVSROOT=anoncvs@anoncvs2.usa.openbsd.org:/cvs</strong><br>
69: Host also known as <strong>hal.heuris.com</strong>.<br>
70: located in MO, mid-west USA.<br>
71: maintained by <a href=mailto:johns@heuris.com>John Stone</a>.<br>
72: protocols: rsh, ssh, ssh port 2022.<br>
73: updated every 12 hours.<br>
74: <p>
75: <li><strong>CVSROOT=anoncvs@anoncvs3.usa.openbsd.org:/cvs</strong><br>
76: Host also known as <strong>freestuff.cs.colorado.edu</strong>.<br>
77: located at the University of Colorado, Boulder, western USA.<br>
78: maintained by <a href=mailto:Todd.Miller@cs.colorado.edu>Todd Miller</a>.<br>
79: protocols: ssh, ssh port 2022.<br>
80: updated every 6 hours.<br>
81: <p>
82: <li><strong>CVSROOT=anoncvs@anoncvs.uk.openbsd.org:/cvs</strong><br>
83: Host also known as <strong>dumpty.wonderland.org</strong>.<br>
84: located in London, UK.<br>
85: maintained by <a href=mailto:peter@wonderland.org>Peter Galbavy</a>.<br>
86: protocols: rsh.<br>
87: updated every 12 hours.<br>
88: <p>
89: <li><strong>CVSROOT=anoncvs@anoncvs.tw.openbsd.org:/cvs</strong><br>
90: Host also known as <strong>hercules.secc.fju.edu.tw</strong>.<br>
91: located in Taipei, Taiwan.<br>
92: maintained by <a href=mailto:shawn@openbsd.org>Shawn Hsiao</a>.<br>
93: protocols: rsh, ssh, ssh port 2022.<br>
94: updated every 12 hours.<br>
95: <p>
96: <li><strong>CVSROOT=anoncvs@anoncvs.no.openbsd.org:/cvs</strong><br>
97: located in Norway.<br>
98: maintained by <a href=mailto:micheals@openbsd.org>Michael Shuldman</a>.<br>
99: protocols: rsh, ssh, ssh port 2022.<br>
100: updated every 4 hours.<br>
101: </ul>
102: <p>
103: You may want to use `traceroute' to find out which server is nearest you.
104: </dl>
105: </p>
106:
107: <p>
108: <strong>IMPORTANT NOTE:</strong>
109: There are a few issues relating to cryptographic software that everyone
110: should be aware of:
111: <ul>
112: <li>The OpenBSD sources are from Canada.
113: <a href=http://insight.mcmaster.ca/org/efc/pages/doc/crypto-export.html>It
114: is legal to export crypto software from Canada to the world.</a>
115: <p>
116: <li>However, if you are outside the USA or Canada, you should not
117: fetch the cryptographic sections of the OpenBSD sources from an
118: anoncvs server located in the USA. The files in question are...
119: <ul>
120: <li>src/kerberosIV/*
121: <li>src/lib/libc/crypt/crypt.c
122: <li>src/lib/libc/crypt/morecrypt.c
123: </ul>
124: Because of the USA ITAR munitions list,
125: crypto software may only be exported to Canada from the USA.
126: <p>
127: <li>The OpenBSD project is looking for more anoncvs servers -- read
128: on to find out how you can help.
129: </ul>
130: </p>
131:
132: <p>
133: A sample use of an anoncvs CVS server would be:
134: <pre>
135: % setenv CVSROOT anoncvs@anoncvs.usa.openbsd.org:/cvs
136: % cd /tmp
137: % cvs get src/sys/arch/sparc
138: [copies the files from the repository to your machine]
139: % cvs log src/sys/arch/sparc/sparc/locore.s
140: [shows the commit log for the chosen file ]
141: % cvs diff -bc -r1.1 -r1.5 src/sys/arch/sparc/sparc/locore.s
142: [shows the changes between revisions 1.1 and rev 1.5]
143: </pre>
144: </p>
145:
146: <p>
147: Here is how someone using anoncvs regularily would update his
148: source tree:
149: <pre>
150: # setenv CVSROOT anoncvs@anoncvs.usa.openbsd.org:/cvs
151: # cd /usr
152: # cvs -q get -PA src
153: </pre>
154: or similarily later on he might try
155: <pre>
156: # cd /usr/src
157: # cvs -q up -PAd
158: </pre>
159: Everytime you ran this it would syncronize your /usr/src tree. It would
160: not destroy any of your local changes, rather it would attempt to merge
161: changes in. If you use obj directories (not obj symbolic links) you may
162: wish to append "-I obj" to the cvs command line, this will keep cvs from
163: spitting out a warning about all the obj directories it is going to
164: encounter which are not in the repository.
165: </p>
166:
167: <p>
168: The CVS man page (included with the CVS sources) has much more
169: information about how CVS can be used.
170: </p>
171:
172: <p>
173: The anoncvs service gives fledgling developers a chance to learn CVS
174: operation and get thoroughly involved in the development process
175: before getting "commit" access -- as a result of showing useful
176: skills and high quality results they will naturally later be given
177: developer access. As well, people providing patches can create
178: their "diff"s relative to the CVS tree, which will ease integration.
179: </p>
180:
181: <p>
182: The CVS client uses rsh to talk to the CVS server. If some local
183: security measure like a firewall (or imperfect protocol emulators
184: like slirp) prevents you from using rsh, you may be able to use
185: <a href=http://www.cs.hut.fi/ssh>ssh</a> instead. In this case,
186: one sets the environment variable <strong>CVS_RSH</strong> to point
187: to ssh (typically <strong>/usr/local/bin/ssh</strong>). To reduce the
188: performance hit the anoncvs server would take it is recommended (and
189: requested) that you disable encryption. If your local site prevents
190: you from connecting out to port 22 (which ssh defaults to using) use
191: port 2022.
192: </p>
193:
194: <p>
195: Do not be tempted to turn on compression since CVS already compresses.
196: Use something like the following in your <strong>$HOME/.ssh/config</strong>
197: file.
198: </p>
199: <pre>
200: Host anoncvs.usa.openbsd.org
201: Cipher none
202: Port 2022
203: </pre>
204:
205: <p>
206: CVS is a little noisy starting up; to quiet it a bit you may want to
207: do this:
208: <pre>
209: setenv CVS_CLIENT_PORT -1
210: </pre>
211: </p>
212:
213: <p>
214: If you wish to be a new anoncvs mirror site, please contact the anoncvs
215: <a href=mailto:deraadt@theos.com>maintainer</a>.
216: Anoncvs mirrors require about 300MB of disk, and use up to 4MB of swap
217: per anoncvs user (assuming the user does a large operation; while smaller
218: operations use fewer resources, anoncvs still makes much more of an
219: impact than ftp or sup). Such anoncvs machines should have excellent
220: network connectivity for the area they are expected to serve. A
221: <a href=anoncvs.shar>document</a>
222: which describes the setup of anoncvs servers is available.
223: </p>
224:
225: </dl>
226:
227: <hr>
228: <a href=mailto:www@openbsd.org>www@openbsd.org</a>
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