[SOLVED]: Execute php from a Bash environment

Javote · Nov 4, 2015, 7:13 PM

Hello everyone!

First! Congratulations! Excellent software, and great community!

Now, for the real reason of the post.

I have a script in bash that I execute as follows:

# bash ./bash_script.sh

Inside the script I make a call to php executable as follows:


php -f /path/to/helper/php_file.php

The problem is that the php executable is not found.
If I log to SSH console and execute the same line, it works.
If on the same console I launch a bash shell and execute de same line, it fails.

My guess is that bash is forbidden it's access to php.

Is there a way I can execute my php script from my bash script?

Thanks!

Edit: TL;DR, I installed bash using: pkg install bash

doktornotor · Nov 4, 2015, 5:53 PM

It will work a whole lot better with /usr/local/bin/php

Javote · Nov 4, 2015, 6:03 PM

@doktornotor:

It will work a whole lot better with /usr/local/bin/php

It won't, there is no such file. Also, which php does not work. PATH variable seems OK.

bash: /usr/local/bin/php: No such file or directory


REMOTEHOST=xxxxx
HOST=xxxx
SHELL=/bin/sh
TERM=xterm
CLICOLOR=true
SSH_CLIENT=xxxx
LD_32_LIBRARY_PATH=/usr/local/lib
SSH_TTY=/dev/pts/0
GROUP=wheel
USER=root
HOSTTYPE=FreeBSD
FTP_PASSIVE_MODE=YES
LSCOLORS=exfxcxdxbxegedabagacad
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
MAIL=/var/mail/root
BLOCKSIZE=K
PWD=/root
LD_32_PBIPRELOAD=/usr/pbi/.pbi_preload32.so
LD_ELF_HINTS_PATH=/var/run/ld-elf.so.hints.freeradius-amd64
LD_PBIPRELOAD=/usr/pbi/.pbi_preload.so
SHLVL=2
HOME=/root
OSTYPE=FreeBSD
VENDOR=amd
MACHTYPE=x86_64
LOGNAME=root
SSH_CONNECTION=xxxx
LD_32_ELF_HINTS_PATH=/var/run/ld-elf32.so.hints.freeradius-amd64
PBI_RUNDIR=/usr/pbi/freeradius-amd64
_=/usr/bin/env

Looking at ti, I get the feeling all these references to freeradius might be causing some trouble!

doktornotor · Nov 4, 2015, 6:13 PM

Where's no such file? What are you talking about?


$ /usr/local/bin/php
/usr/local/bin/php: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD 10.1, not stripped

Fix your system. Plus, why on earth you need bash for this? What's wrong with /bin/sh? Also, stop relying on PATH being set anywhere in your scripts. Especially the remotely executed ones.

Javote · Nov 4, 2015, 6:26 PM

@doktornotor:

Where's no such file? What are you talking about?

Thats what I get from trying to execute php from bash!

@doktornotor:

Fix your system. Plus, why on earth you need bash for this? What's wrong with /bin/sh? Also, stop relying on PATH being set anywhere in your scripts. Especially the remotely executed ones.

I will gladly fix my system. Will you help me?

I use which command to get the location (this might be using PATH), but it returns empty. How else can I make my script portable?
Either way, php will not execute (it will not be found).

Regards

doktornotor · Nov 4, 2015, 6:27 PM

Without PHP, your pfSense would be unbootable. Post your code here if you want any meaningful help.

Javote · Nov 4, 2015, 6:38 PM

I think I got to something!

From sh shell:


[2.2.3-RELEASE][root@pfsense]/root: which bash
/usr/local/bin/bash

But when I go check this bash executable i get that it is a symlink to a bash from freeradius:


[2.2.3-RELEASE][root@pfsense]/root: ls -l /usr/local/bin/bash
lrwxr-xr-x  1 root  wheel  34 Oct 29 16:29 /usr/local/bin/bash -> /usr/pbi/freeradius-amd64/bin/bash

So I am thinking the bash, gets me inside a jail, because when I am inside bash and list /usr/local/bin I get this:


[root@pfsense ~]# ls /usr/local/bin/
2to3-2.7         corelist         droplang         gettext          k5srvutil        ktutil           ldapsearch       mysqlaccess      ngettext         pg_config        pod2man          ptar             radcrypt         reindexdb        splain
a2p              cpan             dropuser         gettext.sh       kadmin           kvno             ldapurl          mysqlaccess.conf openssl          pg_dump          pod2text         ptardiff         radeapclient     rlm_dbm_cat      uuclient
bash             cpan2dist        ecpg             gss-client       kdestroy         ldapadd          ldapwhoami       mysqladmin       perl             pg_dumpall       pod2usage        ptargrep         radlast          rlm_dbm_parser   vacuumdb
bashbug          cpanp            enc2xs           h2ph             kinit            ldapcompare      libnetcfg        mysqlbinlog      perl5            pg_isready       podchecker       pydoc2.7         radsniff         rlm_ippool_tool  xml2-config
c2ph             cpanp-run-perl   envsubst         h2xs             klist            ldapdelete       msql2mysql       mysqlcheck       perl5.18.4       pg_restore       podselect        python2.7        radsqlrelay      s2p              xmlcatalog
c_rehash         createdb         find2perl        idle2.7          kpasswd          ldapexop         mysql            mysqldump        perlbug          piconv           prove            python2.7-config radtest          sclient          xmllint
clusterdb        createlang       gdbm_dump        indexinfo        krb5-config      ldapmodify       mysql_config     mysqlimport      perldoc          pl2pm            psed             rad_counter      radwho           shasum           xsubpp
compile_et       createuser       gdbm_load        instmodsh        ksu              ldapmodrdn       mysql_find_rows  mysqlshow        perlivp          pod2html         psql             radclient        radzap           sim_client       zipdetails
config_data      dropdb           gdbmtool         json_pp          kswitch          ldappasswd       mysql_waitpid    mysqlslap        perlthanks       pod2latex        pstruct          radconf2xml      rbash            smbencrypt

Which is the same as I get when I list /usr/pbi/freeradius-amd64/local/bin

But really different from when I list /usr/local/bin from the sh prompt:


[2.2.3-RELEASE][root@pfsense]/root: ls /usr/local/bin/
3gstat                         c-icap                         filterparser.php               lua50                          php                            radtest                        slowdownpipe.sh                zabbix_get
3gstats.php                    c-icap-client                  gettext                        lua50c                         ping_hosts.sh                  radwho                         smbencrypt                     zabbix_sender
7z                             captiveportal_gather_stats.php gettext.sh                     lua50c51                       pki                            radzap                         sqlite3                        zip
7za                            check_ip.php                   gogoc                          mail.php                       rad_counter                    rate                           sudo                           zipcloak
7zr                            cpdup                          hifnstats                      minicron                       radclient                      rbash                          sudoedit                       zipnote
athstats                       cryptokeytest                  host                           ngettext                       radconf2xml                    rlm_dbm_cat                    sudoreplay                     zipsplit
bash                           cryptostats                    iftop                          nslookup                       radcrypt                       rlm_dbm_parser                 ubsecstats
bashbug                        cryptotest                     ipmitool                       nsupdate                       radeapclient                   rlm_ippool_tool                viconfig
beep                           dig                            ipsecstats                     pcre-config                    radlast                        rrdtool                        voucher
beep.sh                        easyrule                       isc-config.sh                  pcregrep                       radsniff                       runmsntp.sh                    wol
bind9-config                   envsubst                       links                          pcretest                       radsqlrelay                    safestats                      xmllint

My conclusion is that freeradius installs its own version of bash that gets inside the jail!

I would have to install bash from a bash package then, but I worry that freeradius will stop working!

doktornotor · Nov 4, 2015, 6:41 PM

Rewrite your top secret code to use /bin/sh.

Javote · Nov 4, 2015, 7:12 PM

@doktornotor:

Rewrite your top secret code to use /bin/sh.

It's not that it is TOP-SECRET, at this point the code is noise. I won't rewrite because it is really long.

You are missing the problem, that is the bash symlink to freeradius. I appreciate your help.

I resolved installing bash using


pkg install bash

Regards

doktornotor · Nov 4, 2015, 7:21 PM

No, I'm not missing the problem. Any PBI clusterfuck is unusable for similar tasks. (Why are you writing bash-specific scripts for system that has no bash by default still goes beyond me.)