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INSTALL.md: reformat
Add ./configure step Fix libpcre-dev to libpcre2-dev
This commit is contained in:
Sergey Ponomarev
Yves Rutschle
parent
1ddf45bf52
commit
717fe8fae5
158
doc/INSTALL.md
158
doc/INSTALL.md
@ -7,6 +7,7 @@ available directly from [Github](https://github.com/yrutschle/sslh/pkgs/containe
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Windows binaries for Cygwin are graciously produced by
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nono303 on his [repository](https://github.com/nono303/sslh).
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Compile and install
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===================
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@ -15,139 +16,130 @@ Dependencies
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`sslh` uses:
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* [libconfig](http://www.hyperrealm.com/libconfig/). For
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Debian this is contained in package `libconfig-dev`. You
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can compile with or without it using USELIBCONFIG in the
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Makefile.
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* [libconfig](http://www.hyperrealm.com/libconfig/).
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For Debian this is contained in package `libconfig-dev`.
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You can compile with or without it using USELIBCONFIG in the Makefile.
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* [libwrap](http://packages.debian.org/source/unstable/tcp-wrappers).
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For Debian, this is contained in packages
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`libwrap0-dev`. You
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can compile with or without it using USELIBWRAP in the
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Makefile.
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For Debian, this is contained in packages `libwrap0-dev`.
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You can compile with or without it using USELIBWRAP in the Makefile.
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* [libsystemd](http://packages.debian.org/source/unstable/libsystemd-dev), in package `libsystemd-dev`. You
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can compile with or without it using USESYSTEMD in the
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Makefile.
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* [libsystemd](http://packages.debian.org/source/unstable/libsystemd-dev), in package `libsystemd-dev`.
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You can compile with or without it using USESYSTEMD in the Makefile.
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* [libcap](http://packages.debian.org/source/unstable/libcap-dev), in package `libcap-dev`. You can compile with or without it using USELIBCAP in the Makefile
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* [libcap](http://packages.debian.org/source/unstable/libcap-dev), in package `libcap-dev`.
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You can compile with or without it using USELIBCAP in the Makefile
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* libbsd, to enable to change the process name (as shown in
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`ps`, so each forked process shows what protocol and what
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connection it is serving),
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which requires `libbsd` at runtime, and `libbsd-dev` at
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compile-time.
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* libbsd, to enable to change the process name (as shown in `ps`,
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so each forked process shows what protocol and what connection it is serving),
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which requires `libbsd` at runtime, and `libbsd-dev` at compile-time.
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* libpcre2, in package `libpcre-dev`. You can compile
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with or without it using ENABLE_REGEX in the Makefile.
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* libpcre2, in package `libpcre2-dev`.
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You can compile with or without it using ENABLE_REGEX in the Makefile.
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* libev-dev, in package `libev-dev`. If you build a binary
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specifically and do not build `sslh-ev`, you don't need
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this.
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* libev-dev, in package `libev-dev`.
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If you build a binary specifically and do not build `sslh-ev`, you don't need this.
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For OpenSUSE, these are contained in packages libconfig9 and
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libconfig-dev in repository
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<http://download.opensuse.org/repositories/multimedia:/libs/openSUSE_12.1/>
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For Fedora, you'll need packages `libconfig` and
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`libconfig-devel`:
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For Fedora, you'll need packages `libconfig` and `libconfig-devel`:
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yum install libconfig libconfig-devel
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yum install libconfig libconfig-devel
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If you want to rebuild `sslh-conf.c` (after a `make
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distclean` for example), you will also need to add
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[conf2struct](https://www.rutschle.net/tech/conf2struct/README.html)
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If you want to rebuild `sslh-conf.c` (after a `make distclean` for example),
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you will also need to add [conf2struct](https://www.rutschle.net/tech/conf2struct/README.html)
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(v1.5) to your path.
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The test scripts are written in Perl, and will require
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IO::Socket::INET6 (libio-socket-inet6-perl in Debian).
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`IO::Socket::INET6` (`libio-socket-inet6-perl` in Debian).
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Compilation
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-----------
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After this, the Makefile should work:
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make install
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make install
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There are a couple of configuration options at the beginning
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of the Makefile:
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There are a couple of configuration options at the beginning of the Makefile:
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* `USELIBWRAP` compiles support for host access control (see
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`hosts_access(3)`), you will need `libwrap` headers and
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library to compile (`libwrap0-dev` in Debian).
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* `USELIBWRAP` compiles support for host access control (see `hosts_access(3)`),
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you will need `libwrap` headers and library to compile (`libwrap0-dev` in Debian).
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* `USELIBCONFIG` compiles support for the configuration
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file. You will need `libconfig` headers to compile
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(`libconfig8-dev` in Debian).
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* `USELIBCONFIG` compiles support for the configuration file.
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You will need `libconfig` headers to compile (`libconfig8-dev` in Debian).
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* `USESYSTEMD` compiles support for using systemd socket activation.
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You will need `systemd` headers to compile (`systemd-devel` in Fedora).
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* `USESYSTEMD` compiles support for using systemd socket activation.
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You will need `systemd` headers to compile (`systemd-devel` in Fedora).
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* `USELIBBSD` compiles support for updating the process name (as shown by `ps`).
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* `USELIBBSD` compiles support for updating the process name (as shown
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by `ps`).
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Generating the configuration parser
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-----------------------------------
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The configuration file and command line parser is generated
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by `conf2struct`, from `sslhconf.cfg`, which generates
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`sslh-conf.c` and `sslh-conf.h`. The resulting files are
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included in the source so `sslh` can be built without
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`conf2struct` installed.
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The configuration file and command line parser is generated by `conf2struct`,
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from `sslhconf.cfg`, which generates `sslh-conf.c` and `sslh-conf.h`.
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The resulting files are included in the source
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so `sslh` can be built without `conf2struct` installed.
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Further, to prevent build issues,
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`sslh-conf.[ch]` has no dependency to `sslhconf.cfg` in the Makefile.
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In the event of adding configuration settings,
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they need to be regenerated using `make c2s`.
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Further, to prevent build issues, `sslh-conf.[ch]` has no
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dependency to `sslhconf.cfg` in the Makefile. In the event
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of adding configuration settings, they need to be
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regenerated using `make c2s`.
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Binaries
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--------
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The Makefile produces three different executables: `sslh-fork`,
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`sslh-select` and `sslh-ev`:
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The Makefile produces three different executables:
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`sslh-fork`, `sslh-select` and `sslh-ev`:
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* `sslh-fork` forks a new process for each incoming connection.
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It is well-tested and very reliable, but incurs the overhead
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of many processes.
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If you are going to use `sslh` for a "small" setup (less than
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a dozen ssh connections and a low-traffic https server) then
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`sslh-fork` is probably more suited for you.
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It is well-tested and very reliable, but incurs the overhead of many processes.
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If you are going to use `sslh` for a "small" setup
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(less than a dozen ssh connections and a low-traffic https server)
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then `sslh-fork` is probably more suited for you.
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* `sslh-select` uses only one thread, which monitors all
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connections at once. It only incurs a 16 byte overhead per
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connection. Also, if it stops, you'll lose all connections,
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which means you can't upgrade it remotely. If you are going
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to use `sslh` on a "medium" setup (a few hundreds of
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connections), or if you are on a system where forking is
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expensive (e.g. Windows), `sslh-select` will be better.
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* `sslh-select` uses only one thread, which monitors all connections at once.
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It only incurs a 16 byte overhead per connection.
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Also, if it stops, you'll lose all connections,
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which means you can't upgrade it remotely.
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If you are going to use `sslh` on a "medium" setup (a few hundreds of connections),
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or if you are on a system where forking is expensive (e.g. Windows),
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`sslh-select` will be better.
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* `sslh-ev` is similar to `sslh-select`, but uses `libev` as a backend.
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This allows using specific kernel APIs that
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allow to manage thousands of connections concurrently.
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* `sslh-ev` is similar to `sslh-select`, but uses `libev` as
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a backend. This allows using specific kernel APIs that
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allow to manage thousands of connections concurrently.
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Installation
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------------
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* In general:
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make
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cp sslh-fork /usr/local/sbin/sslh
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cp basic.cfg /etc/sslh.cfg
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vi /etc/sslh.cfg
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```sh
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./configure
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make
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cp sslh-fork /usr/local/sbin/sslh
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cp basic.cfg /etc/sslh.cfg
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vi /etc/sslh.cfg
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```
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* For Debian:
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cp scripts/etc.init.d.sslh /etc/init.d/sslh
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```sh
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cp scripts/etc.init.d.sslh /etc/init.d/sslh
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```
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* For CentOS:
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cp scripts/etc.rc.d.init.d.sslh.centos /etc/rc.d/init.d/sslh
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```sh
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cp scripts/etc.rc.d.init.d.sslh.centos /etc/rc.d/init.d/sslh
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```
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You might need to create links in /etc/rc<x>.d so that the server
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start automatically at boot-up, e.g. under Debian:
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update-rc.d sslh defaults
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```sh
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update-rc.d sslh defaults
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```
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