[SOLVED]: Execute php from a Bash environment

Javote

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

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

Javote

@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

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

@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

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

Javote

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

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

Javote

@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

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.)