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* system: Add /etc/subuid and /etc/subgid support.•••This commit adds a Guix System service to handle allocation of subuid and subgid requests. Users that don't care can just add themselves as a subid-range and don't need to specify anything but their user name. Users that care about specific ranges, such as possibly LXD, can specify a start and a count. * doc/guix.texi (Miscellaneous Services): Document it. * gnu/build/activation.scm (activate-subuids+subgids): New variable. * gnu/local.mk: Add gnu/tests/shadow.scm. * gnu/system/accounts.scm (sexp->subid-range): New variable. * gnu/system/shadow.scm (%root-subid): New variable; (subids-configuration): new record; (subid-range->gexp): new variable; (assert-valid-subids): new variable; (delete-duplicate-ranges): new variable; (subids-activation): new variable; (subids-extension): new record; (append-subid-ranges): new variable; (subids-extension-merge): new variable; (subids-service-type): new variable. * gnu/tests/shadow.scm (subids): New system test. Change-Id: I3755e1c75771220c74fe8ae5de1a7d90f2376635 Signed-off-by: Giacomo Leidi <goodoldpaul@autistici.org> Signed-off-by: Ludovic Courtès <ludo@gnu.org> Giacomo Leidi2024-12-181-0/+10
* accounts: Add /etc/subid and /etc/subgid allocation logic.•••This commit adds allocation logic for subid ranges. Subid ranges are ranges of contiguous subids that are mapped to a user in the host system. This patch implements a flexible allocation algorithm allowing users that do not want (or need) to specify details of the subid ranges that they are requesting to avoid doing so, while upholding requests of users that need to have specific ranges. * gnu/build/accounts.scm (%subordinate-id-min): New variable; (%subordinate-id-max): new variable; (%subordinate-id-count): new variable; (subordinate-id?): new variable; (&subordinate-id-error): new variable; (&subordinate-id-overflow-error): new variable; (&illegal-subid-range-error): new variable; (&specific-subid-range-expected-error): new variable; (&generic-subid-range-expected-error): new variable; (within-interval?): new variable; (allocate-unused-range): new variable; (allocate-generic-range): new variable; (allocate-specific-range): new variable; (reserve-subids): new variable; (range->entry): new variable; (entry->range): new variable; (allocate-subids): new variable; (subuid+subgid-databases): new variable. * gnu/system/accounts.scm (subid-range-end): New variable; (subid-range-has-start?): new variable; (subid-range-less): new variable. * test/accounts.scm: Test them. Change-Id: I8de1fd7cfe508b9c76408064d6f498471da0752d Co-Authored-By: Ludovic Courtès <ludo@gnu.org> Signed-off-by: Giacomo Leidi <goodoldpaul@autistici.org> Signed-off-by: Ludovic Courtès <ludo@gnu.org> Giacomo Leidi2024-12-181-0/+30
* accounts: Add /etc/subuid and /etc/subgid support.•••This commit adds a new record type, <subid-entry> and serializers and deserializers for it in (gnu build accounts). Each instance of this record represents one line in either /etc/subuid or /etc/subgid. Since Shadow uses the same representation for both files, it should be ok if we do it as well. This commit adds also <subid-range>, a user facing representation of <subid-entry>. It is supposed to be usable directly in OS configurations. * gnu/build/accounts.scm (subid-entry): New record; (write-subgid): add serializer for subgids; (write-subuid): add serializer for subuids; (read-subgid): add serializer for subgids; (read-subuid): add serializer for subuids. * gnu/system/accounts.scm (subid-range): New record. * test/accounts.scm: Test them. Change-Id: I6b037e40e354c069bf556412bb5b626bd3ea1b2c Signed-off-by: Giacomo Leidi <goodoldpaul@autistici.org> Signed-off-by: Ludovic Courtès <ludo@gnu.org> Giacomo Leidi2024-12-181-0/+17
* Revert "system: accounts: Export <user-account>."•••This reverts commit 03795e2ba27424fc98957da00f6c71325e7ae425. Fixes <https://issues.guix.gnu.org/66279>. Ludovic Courtès2023-10-051-2/+1
* Revert "gnu: system: Add home-directory-permissions field to <user-account>."•••This reverts commit e9a5eebc785cb843034b38c5c5a6dd10904bdf2a, which as far as I can tell breaks system roll-backs thusly: [...] In gnu/build/accounts.scm: 239:27 3 (_ #<<password-entry> name: "root" password: "x" uid: 0 gid: 0 real-name: "System >) In unknown file: 2 (string-join ("root" "x" "0" "0" "System administrator" "/root" #t) ":" #<undefined>) In ice-9/boot-9.scm: 1685:16 1 (raise-exception _ #:continuable? _) 1685:16 0 (raise-exception _ #:continuable? _) ice-9/boot-9.scm:1685:16: In procedure raise-exception: In procedure string-append: Wrong type (expecting string): #t Tobias Geerinckx-Rice2023-08-201-3/+0
* gnu: system: Add home-directory-permissions field to <user-account>.•••* gnu/system/accounts.scm (<user-account>)[home-directory-permissions]: New field. (user-account-home-directory-permissions): New accessor. * gnu/build/activation.scm (activate-users+groups): Use home directory permission bits from the user account object. * doc/guix.texi (User Accounts): Document new field. Signed-off-by: Josselin Poiret <dev@jpoiret.xyz> David Thompson2023-08-251-0/+3
* system: accounts: Export <user-account>.Maxim Cournoyer2023-07-261-1/+2
* accounts: Add default value for the 'home-directory' field of <user-account>.•••* gnu/system/accounts.scm (<user-account>)[home-directory]: Mark as thunked and add a default value. (default-home-directory): New procedure. * doc/guix.texi (User Accounts): Remove 'home-directory' from example. * gnu/system/examples/bare-bones.tmpl: Likewise. * gnu/system/examples/beaglebone-black.tmpl: Likewise. * gnu/system/examples/desktop.tmpl: Likewise. * gnu/system/examples/docker-image.tmpl: Likewise. * gnu/system/examples/lightweight-desktop.tmpl: Likewise. * gnu/system/install.scm (installation-os): Likewise. * gnu/tests.scm (%simple-os): Likewise. * gnu/tests/install.scm (%minimal-os, %minimal-os-on-vda): (%separate-home-os, %encrypted-root-os, %btrfs-root-os): Likewise. * tests/accounts.scm ("allocate-passwd") ("allocate-passwd with previous state"): Likewise. Ludovic Courtès2019-03-251-1/+6
* activation: Operate on <user-account> and <user-group> records.•••* gnu/system/accounts.scm (sexp->user-group, sexp->user-account): New procedures. * gnu/system/shadow.scm (account-activation): Call them in the arguments to 'activate-users+groups'. (account-shepherd-service): Likewise. * gnu/build/activation.scm (activate-users+groups): Expect a list of <user-account> and a list of <user-group>. Replace uses of 'match' on tuples with calls to record accessors. (activate-user-home): Likewise. Ludovic Courtès2019-03-071-0/+28
* system: Add (gnu system accounts).•••The (gnu system accounts) module is meant to be used both on the build- and on the host-side. * gnu/system/shadow.scm <top level>: Call 'default-shell'. (<user-account>, <user-group>): Move to... * gnu/system/accounts.scm: ... here. New file. * gnu/local.mk (GNU_SYSTEM_MODULES): Add system/accounts.scm. Ludovic Courtès2019-03-071-0/+81