³ò òýIc@s)dZddkZddkZddkZddklZlZlZlZl Z e djoÆdZ edei ƒZ edei ƒZeei ƒZdZeiieid d ƒZeiied ƒZd Zep¢eiiei d ƒdZeiieƒoneedƒiƒZeejoHeieƒZeideƒZeideƒZeede!Zqzq~ned joedei ƒZned joRedede ƒZed joe dGHei ƒneidƒd Zn:eiieeƒZeiieƒpe edGHnepŒeegZe ei ƒZ!e"e!ƒd joei#e!ƒne"eƒdjoei#edƒne edeGHei$eeƒneede ƒZeidƒd jZ%e%o&eiieid dƒZ&dZ'n#eiieid dƒZ&dZ'eii(e&ƒpe e&dGHei ƒnei)e&ƒgZ*xzei+dƒD]iZ!e!ie'ƒd joMeii,e!ƒdd jo,eii-e!d ƒoe*i.e!ƒqùqýq”q”We"e*ƒd joºeiieiieƒd d!ƒZ/e d"e/GHee/d#e ƒZe%oe'Z*e*d Z0qâei1ƒe'd$d%ei2dd&ƒZ*e*d Z0ei3e'e*ƒei3e'd e0ƒne*d Z*e*d Z0e d'ed(e*GHe%o2d)Z4ee0dƒiƒZ5e5idƒd Z5n d*e*Z!eiid+ƒoAed+dƒiƒZeie!ƒdjoee!d7Zq”ndZed+d,ƒi6eƒd-Z4ee0dƒiƒZ5d.e0Z!edZ7x;e7D]3Zd/ed0GHe%oNeded1d2e4d3d4e5d5e4d6d7d8e5d9e4d:Z8ncd;e0d<eded1d=e0d3d2e4d3d4e!d5e4d3d7d8e!d9e4d:Z8ee8e ƒeii(eƒpei9eƒneiieeƒZeii:eƒo(eii-eƒpei;eƒq+neii:eƒpei<ei d eƒned jo­eiieƒodeedƒiƒZeejo>eieƒZeideƒZed e!eedZqãnd Zeeded7Zeed,ƒi6eƒqàqàWei ƒndS(>so #+ # NAME: # ssh_to # PURPOSE: # Simplify login between accounts on subnet # CATEGORY: # ucsd/gen/python # CALLING SEQUENCE: # ssh_to <-init> <...> # INPUTS: # user@host account for which ssh access is needed # (if the user name on the remote host is # the same as on the account from which # ssh_to is executed then 'user@ can be # omitted. # OPTIONAL INPUT PARAMETERS: # -init if specified it must be the first command # line argument. Initializes ssh access # to the remote account (see PROCEDURE). # OUTPUTS: # (private/public key pair; updates of local 'identification' # file and remote 'authorization' file(s)) # OPTIONAL OUTPUT PARAMETERS: # CALLS: # tiny.is_there, tiny.args, tiny.start, tiny.run_cmd, tiny.keys # RESTRICTIONS: # > Assumes that ssh2 creates 2048 bit dsa keys # with key name id_dsa_2048_a for the private key # and id_dsa_2048_a.pub for the public key. # > Assumes that ~/.ssh2 already exists on the remote # machines. # > For the soft links to work ~/bin must be in the path. # EXAMPLE: # ssh_to -init user@host (initializes user@host) # user@host (logs into user@host) # PROCEDURE: # If -init is set: # 1. Check for private key of type id_dsa_2048_a_*. # 2. If the private key does not exist, then run # ssh-keygen2 to generate private key id_dsa_2048_a # and public key id_dsa_2048_a.pub. Rename the key # pair to id_dsa_2048_a_$RANDOM(.pub). # 3. Put private key in .ssh2/identification # 4. Loop over all hosts, and for each # a. put the public key in remote ~/.ssh2 directory, # b. put the name of the public key in remote ~/.ssh2/authorization. # c. put a link to ssh2_to in ~/bin # MODIFICATION HISTORY: # JUL-2004, Paul Hick (UCSD/CASS) # JAN-2004, Paul Hick (UCSD/CASS) # Converted from bash to Python. # FEB-2009, Paul Hick (UCSD/CASS; pphick@ucsd.edu) # Improved lookup of files with private keys. #- iÿÿÿÿN(tis_theretargststarttrun_cmdtkeyst__main__sssh_to, s-verboses-inittsshtHOMEtbins ssh_to.txttiitrt=s s-bin=swhich s 2> /dev/nulls ssh not founds not foundt s -V 2>&1tOpenSSHs.sshtid_dsas.ssh2t id_dsa_2048_as does not existt.s.pubs ssh-keygensgenerating key with s -t dsat_s%05diŸ†susing s with key s.ssh/authorized_keyssIdKey tidentificationtws.ssh2/authorizationsKey s Set up: s s "stouch s; sgrep \"s\" s > /dev/null; s if [ \$? == 0 ]; then exit; fi; secho \"s\" >> t"scat s | scat - > .ssh2/(=t__doc__tostsystrandomttinyRRRRRt__name__tsaytargvtverbosetinittargRtpathtjointenvironRttxttssh_bintsplitthosttisfiletopentreadttmptfindtpbegtpendtexittkeytlentextendtexecvptopen_sshtssh_dirtprefixtisdirtchdirtprivatetlistdirtsplitexttexiststappendtkeygentpublictseedtrandinttrenametauthtvaltwritethoststcmdtmkdirtislinktremovetsymlink(((s ssh_to.pys9sè$(          %         C [   !