Re: "Permission denied" from dired, but not from ido completion in tramp

[Michael Albinus]

Philipp Middendorf <pmidden@mailbox.org> writes:

> Hi,

Hi Philipp,

> attached is the gzipped tramp log (I hope file attachments work,
> otherwise tell me how to give the log to you - uncompressed it's
> 70MiB, compressed it's 4MiB) of what I did:
>
> - via ido-find-file, navigate to
>   /asap3/petra3/gpfs/p11/2024/data/11019260 (which then presented me
>   with a list files inside the directory "11019260", proving that you
>   can access it with ido)

I cannot say to much about ido; I don't use it.

> - I then pressed C-j to open the directory "11019260" in dired. This
>   resulted in a permission denied error.

Thanks. The error backtrace is

--8<---------------cut here---------------start------------->8---
  backtrace()
  tramp-error((tramp-file-name "ssh" nil nil "max-display.desy.de" nil 
"/asap3/petra3/gpfs/p11/2024/data/11019260/" nil) permission-denied "Reading 
directory: Permission denied, /ssh:max-dis...")
  
tramp-handle-access-file("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..."
 "Reading directory")
  tramp-sh-file-name-handler(access-file 
"/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "Reading directory")
  apply(tramp-sh-file-name-handler access-file 
("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "Reading directory"))
  tramp-file-name-handler(access-file 
"/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "Reading directory")
  access-file("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "Reading 
directory")
  
tramp-sh-handle-insert-directory("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..."
 "--dired -alh --group-directories-first" nil t)
  tramp-sh-file-name-handler(insert-directory 
"/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "--dired -alh 
--group-directories-first" nil t)
  apply(tramp-sh-file-name-handler insert-directory 
("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "--dired -alh 
--group-directories-first" nil t))
  tramp-file-name-handler(insert-directory 
"/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." "--dired -alh 
--group-directories-first" nil t)
  insert-directory("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." 
"--dired -alh --group-directories-first" nil t)
  
dired-insert-directory("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." 
"-alh --group-directories-first" nil nil t)
  dired-readin-insert()
  #<subr F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_47>()
  combine-change-calls-1(1 1 #<subr 
F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_47>)
  #<subr dired-readin>()
  nerd-icons-dired--refresh-advice(#<subr dired-readin>)
  apply(nerd-icons-dired--refresh-advice #<subr dired-readin> nil)
  dired-readin()
  
dired-internal-noselect("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." 
nil)
  dired-noselect("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20...")
  run-hook-with-args-until-success(dired-noselect 
"/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20...")
  find-file-noselect("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/20..." 
nil nil)
  ido-file-internal(raise-frame)
  ido-find-file()
  funcall-interactively(ido-find-file)
  #<subr call-interactively>(ido-find-file nil nil)
  call-interactively@ido-cr+-record-current-command(#<subr call-interactively> 
ido-find-file nil nil)
  apply(call-interactively@ido-cr+-record-current-command #<subr 
call-interactively> (ido-find-file nil nil))
  call-interactively(ido-find-file nil nil)
  command-execute(ido-find-file)
--8<---------------cut here---------------end--------------->8---

So Tramp tries to do

--8<---------------cut here---------------start------------->8---
'insert-directory("/ssh:max-display.desy.de:/asap3/petra3/gpfs/p11/2024/data/11019260/"
 "--dired -alh --group-directories-first" nil t)'
--8<---------------cut here---------------end--------------->8---

However, this directory has the permissions

--8<---------------cut here---------------start------------->8---
(("‘/asap3/petra3/gpfs/p11/2024/data/11019260/’") 6 ("fsdata" . 26666) 
("fsdata" . 6666) 1718366406 1717758044 1717758044 4096 "dr-xr-x---" t 
11510012908 -1)
--8<---------------cut here---------------end--------------->8---

You are the user "pmidden" with group "cfel", being in a lot of other
groups:

--8<---------------cut here---------------start------------->8---
uid=37383(pmidden) gid=3512(cfel) 
groups=3512(cfel),5536(owncloud),5739(cfeld-cdi),6084(upex),6971(exflswcfel),7348(cfel-c-sc),1000062(hdf-f),1000064(helmholtz-member-f),1000066(desy-f),12101561(BPMusers),110084722(11008472-part),110099992(11009999-part),110100912(11010091-part),110101502(11010150-part),110105772(11010577-part),110107922(11010792-part),110109002(11010900-part),110109012(11010901-part),110109022(11010902-part),110109292(11010929-part),110109352(11010935-part),110109362(11010936-part),110109382(11010938-part),110117282(11011728-part),110118792(11011879-part),110121402(11012140-part),110121722(11012172-part),110122032(11012203-part),110123112(11012311-part),110123182(11012318-part),110123192(11012319-part),110123322(11012332-part),110123852(11012385-part),110125002(11012500-part),110128812(11012881-part),110133492(11013349-part),110136442(11013644-part),110136452(11013645-part),110136472(11013647-part),110136512(11013651-part),110136522(11013652-part),110143762(11014376-part),110143802(11014380-part),110143812(11014381-part),110154022(11015402-part),110154032(11015403-part),110154042(11015404-part),110154052(11015405-part),110154302(11015430-part),110154492(11015449-part),110154902(11015490-part),110155712(11015571-part),110162552(11016255-part),110165652(11016565-part),110165662(11016566-part),110166462(11016646-part),110167702(11016770-part),110167722(11016772-part),110167732(11016773-part),110168102(11016810-part),110168112(11016811-part),110168122(11016812-part),110168132(11016813-part),110168452(11016845-part),110168482(11016848-part),110168532(11016853-part),110168552(11016855-part),110169412(11016941-part),110177572(11017757-part),110179282(11017928-part),110179322(11017932-part),110179352(11017935-part),110179932(11017993-part),110181882(11018188-part),110187322(11018732-part),110192602(11019260-part),110192872(11019287-part),500003233(50000323-clbt),600026962(60002696-part),600027701(60002770-dmgt),600027702(60002770-part),600028191(60002819-dmgt),600028192(60002819-part),600032301(60003230-dmgt),600032302(60003230-part),600032442(60003244-part),600044562(60004456-part),1095811797
--8<---------------cut here---------------end--------------->8---

But you are not member of group "fsdata", and that's why Tramp cannot
access this directory.

> Cheers
> Philipp

Best regards, Michael.

PS: You are accessing a desy host. Do you happen to work in Zeuthen?