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2021-11-27daemon: Print the line whence we expect an integer.Tobias Geerinckx-Rice
* nix/libstore/local-store.cc (LocalStore::getLineFromSubstituter): Include the malformed substituter stream line in the error message.
2021-11-25daemon: Read unsigned nar size and download size from substituter.Ludovic Courtès
Fixes <https://issues.guix.gnu.org/51983>. Reported by Tobias Geerinckx-Rice <me@tobias.gr>. * nix/libstore/local-store.cc (LocalStore::querySubstitutablePathInfos): Expect 'unsigned long long' for 'downloadSize' and 'narSize'. * tests/store.scm ("substitute query and large size"): New test.
2021-04-09daemon: 'guix substitute' replies on FD 4.Ludovic Courtès
This avoids the situation where error messages would unintentionally go to stderr and be wrongfully interpreted as a reply by the daemon. Fixes <https://bugs.gnu.org/46362>. This is a followup to ee3226e9d54891c7e696912245e4904435be191c. * guix/scripts/substitute.scm (display-narinfo-data): Add 'port' parameter and honor it. (process-query): Likewise. (process-substitution): Likewise. (%error-to-file-descriptor-4?, with-redirected-error-port): Remove. (%reply-file-descriptor): New variable. (guix-substitute): Remove use of 'with-redirected-error-port'. Define 'reply-port' and pass it to 'process-query' and 'process-substitution'. * nix/libstore/build.cc (SubstitutionGoal::handleChildOutput): Swap 'builderOut' and 'fromAgent'. * nix/libstore/local-store.cc (LocalStore::getLineFromSubstituter): Likewise. * tests/substitute.scm <top level>: Set '%reply-file-descriptor' rather than '%error-to-file-descriptor-4?'.
2020-12-08daemon: Factorize substituter agent spawning.Ludovic Courtès
* nix/libstore/local-store.hh (class LocalStore)[substituter]: New method. [runningSubstituter]: Turn into a shared_ptr. * nix/libstore/local-store.cc (LocalStore::querySubstitutablePaths): Call 'substituter' instead of using inline code. (LocalStore::querySubstitutablePathInfos): Likewise. (LocalStore::substituter): New method.
2020-12-08daemon: Use 'Agent' to spawn 'guix substitute --query'.Ludovic Courtès
* nix/libstore/local-store.hh (RunningSubstituter): Remove. (LocalStore)[runningSubstituter]: Change to unique_ptr<Agent>. [setSubstituterEnv, didSetSubstituterEnv]: Remove. [getLineFromSubstituter, getIntLineFromSubstituter]: Take an 'Agent'. * nix/libstore/local-store.cc (LocalStore::~LocalStore): Remove reference to 'runningSubstituter'. (LocalStore::setSubstituterEnv, LocalStore::startSubstituter): Remove. (LocalStore::getLineFromSubstituter): Adjust to 'run' being an 'Agent'. (LocalStore::querySubstitutablePaths): Spawn substituter agent if needed. Adjust to 'Agent' interface. (LocalStore::querySubstitutablePathInfos): Likewise. * nix/libstore/build.cc (SubstitutionGoal::tryToRun): Remove call to 'setSubstituterEnv' and add 'setenv' call for "_NIX_OPTIONS" instead. (SubstitutionGoal::finished): Remove 'readLine' call for 'dummy'. * guix/scripts/substitute.scm (%allow-unauthenticated-substitutes?): Remove second argument to 'make-parameter'. (process-query): Call 'warn-about-missing-authentication' when (%allow-unauthenticated-substitutes?) is #t. (guix-substitute): Wrap body in 'parameterize'. Set 'guix-warning-port' too. No longer exit when 'substitute-urls' returns the empty list. No longer print newline initially. * tests/substitute.scm (test-quit): Parameterize 'current-error-port' to account for the port changes in 'guix-substitute'.
2020-09-14daemon: Spawn 'guix authenticate' once for all.Ludovic Courtès
Previously, we'd spawn 'guix authenticate' once for each item that has to be signed (when exporting) or authenticated (when importing). Now, we spawn it once for all and then follow a request/reply protocol. This reduces the wall-clock time of: guix archive --export -r $(guix build coreutils -d) from 30s to 2s. * guix/scripts/authenticate.scm (sign-with-key): Return the signature instead of displaying it. Raise a &formatted-message instead of calling 'leave'. (validate-signature): Likewise. (read-command): New procedure. (define-enumerate-type, reply-code): New macros. (guix-authenticate)[send-reply]: New procedure. Change to read commands from current-input-port. * nix/libstore/local-store.cc (runAuthenticationProgram): Remove. (authenticationAgent, readInteger, readAuthenticateReply): New functions. (signHash, verifySignature): Rewrite in terms of the agent. * tests/store.scm ("import not signed"): Remove 'pk' call. ("import signed by unauthorized key"): Check the error message of C. * tests/guix-authenticate.sh: Rewrite using the new protocol. fixlet
2020-09-14daemon: Isolate signing and signature verification functions.Ludovic Courtès
* nix/libstore/local-store.cc (signHash, verifySignature): New functions. (LocalStore::exportPath): Use 'signHash' instead of inline code. (LocalStore::importPath): Use 'verifySignature' instead of inline code.
2020-09-11daemon: Simplify interface with 'guix authenticate'.Ludovic Courtès
There's no reason at this point to mimic the calling convention of the 'openssl' command. * nix/libstore/local-store.cc (LocalStore::exportPath): Add only "sign" and HASH to ARGS. Remove 'tmpDir' and 'hashFile'. (LocalStore::importPath): Add only "verify" and SIGNATURE to * guix/scripts/authenticate.scm (guix-authenticate): Adjust accordingly; remove the OpenSSL-style clauses. (read-hash-data): Remove. (sign-with-key): Replace 'port' with 'sha256' and adjust accordingly. (validate-signature): Export SIGNATURE to be a canonical sexp. * tests/guix-authenticate.sh: Adjust tests accordingly.
2019-11-13daemon: Don't include <linux/fs.h>.Ludovic Courtès
As of GNU libc 2.29, <sys/mount.h> declares all the constants and functions we need, so there's no use in including <linux/fs.h> anymore. This silences annoying warnings like this one: In file included from nix/libstore/local-store.cc:32:0: /gnu/store/…-linux-libre-headers-4.19.56/include/linux/fs.h:108:0: warning: "MS_RDONLY" redefined #define MS_RDONLY 1 /* Mount read-only */ In file included from nix/libstore/local-store.cc:28:0: /gnu/store/…-glibc-2.29/include/sys/mount.h:36:0: note: this is the location of the previous definition #define MS_RDONLY MS_RDONLY * config-daemon.ac: Remove check for <linux/fs.h>. * nix/libstore/build.cc: Remove conditional inclusion of <linux/fs.h>. * nix/libstore/local-store.cc: Remove "#if HAVE_LINUX_FS_H" and inclusion of <linux/fs.h>.
2019-10-16daemon: Make 'profiles/per-user' non-world-writable.Ludovic Courtès
Fixes <https://bugs.gnu.org/37744>. Reported at <https://www.openwall.com/lists/oss-security/2019/10/09/4>. Based on Nix commit 5a303093dcae1e5ce9212616ef18f2ca51020b0d by Eelco Dolstra <edolstra@gmail.com>. * nix/libstore/local-store.cc (LocalStore::LocalStore): Set 'perUserDir' to #o755 instead of #o1777. (LocalStore::createUser): New function. * nix/libstore/local-store.hh (LocalStore): Add it. * nix/libstore/store-api.hh (StoreAPI): Add it. * nix/nix-daemon/nix-daemon.cc (performOp): In 'wopSetOptions', add condition to handle "user-name" property and honor it. (processConnection): Add 'userId' parameter. Call 'store->createUser' when userId is not -1. * guix/profiles.scm (ensure-profile-directory): Note that this is now handled by the daemon. * guix/store.scm (current-user-name): New procedure. (set-build-options): Add #:user-name parameter and pass it to the daemon. * tests/guix-daemon.sh: Test the creation of 'profiles/per-user' when listening on a TCP socket. * tests/store.scm ("profiles/per-user exists and is not writable") ("profiles/per-user/$USER exists"): New tests.
2019-09-08daemon: Run 'guix substitute' directly and assume a single substituter.Ludovic Courtès
The daemon had a mechanism that allows it to handle a list of substituters and try them sequentially; this removes it. * nix/scripts/substitute.in: Remove. * nix/local.mk (nodist_pkglibexec_SCRIPTS): Remove. * config-daemon.ac: Don't output 'nix/scripts/substitute'. * nix/libstore/build.cc (SubstitutionGoal)[subs, sub, hasSubstitute]: Remove. [tryNext]: Make private. (SubstitutionGoal::SubstitutionGoal, SubstitutionGoal::init): Remove now unneeded initializers. (SubstitutionGoal::tryNext): Adjust to assume a single substituter: call 'amDone' upfront when we couldn't find substitutes. (SubstitutionGoal::tryToRun): Adjust to run 'guix substitute' via 'settings.guixProgram'. (SubstitutionGoal::finished): Call 'amDone(ecFailed)' upon failure instead of setting 'state' to 'tryNext'. * nix/libstore/globals.hh (Settings)[substituters]: Remove. * nix/libstore/local-store.cc (LocalStore::~LocalStore): Adjust to handle a single substituter. (LocalStore::startSubstituter): Remove 'path' parameter. Adjust to invoke 'settings.guixProgram'. Don't refer to 'run.program', which no longer exists. (LocalStore::querySubstitutablePaths): Adjust for 'runningSubstituters' being a singleton instead of a list. (LocalStore::querySubstitutablePathInfos): Likewise, and remove 'substituter' parameter. * nix/libstore/local-store.hh (RunningSubstituter)[program]: Remove. (LocalStore)[runningSubstituters]: Remove. [runningSubstituter]: New field. [querySubstitutablePathInfos]: Remove 'substituter' parameter. [startSubstituter]: Remove 'substituter' parameter. * nix/nix-daemon/guix-daemon.cc (main): Remove references to 'settings.substituters'. * nix/nix-daemon/nix-daemon.cc (performOp): Ignore the user's "build-use-substitutes" value when 'settings.useSubstitutes' is false.
2019-09-08daemon: Run 'guix authenticate' directly.Ludovic Courtès
* nix/scripts/authenticate.in: Remove. * nix/local.mk (nodist_pkglibexec_SCRIPTS): Remove scripts/authenticate. * config-daemon.ac: Don't output 'nix/scripts/authenticate'. * nix/libstore/local-store.cc (runAuthenticationProgram): Run 'guix authenticate'.
2019-02-04daemon: Add "/guix" to default 'nixLibexecDir'.Ludovic Courtès
This makes it easier to run the uninstalled daemon. * nix/local.mk (libstore_a_CPPFLAGS): Append "/guix" to NIX_LIBEXEC_DIR. * build-aux/pre-inst-env.in (NIX_LIBEXEC_DIR): Adjust comment. * nix/libstore/builtins.cc (builtinDownload): Remove SUBDIR and its use. * nix/libstore/local-store.cc (runAuthenticationProgram): Ditto. * nix/libstore/gc.cc (addAdditionalRoots): Remove "/guix" prefix. * nix/nix-daemon/guix-daemon.cc (main): Ditto.
2018-12-16daemon: Use unbranded phrases in comments and messages.Ludovic Courtès
* nix/libstore/build.cc, nix/libstore/globals.cc, nix/libstore/gc.cc, nix/libstore/local-store.cc, nix/libstore/optimise-store.cc, nix/libstore/store-api.cc, nix/libutil/archive.cc, nix/nix-daemon/nix-daemon.cc: Replace "Nix store" by "store", and "Nix daemon" by "build daemon".
2018-11-14daemon: Install 'authenticate' script under LIBEXECDIR/guix.Ludovic Courtès
That way it is handled in the same way as other helper scripts. * nix/scripts/guix-authenticate.in: Rename to... * nix/scripts/authenticate.in: ... this. * config-daemon.ac: Adjust accordingly. * nix/local.mk (libstore_a_CPPFLAGS): Remove -DOPENSSL_PATH. (nodist_libexec_SCRIPTS): Remove. (nodist_pkglibexec_SCRIPTS): New variable. * nix/nix-daemon/guix-daemon.cc (main): Remove 'setenv' call for "PATH". * nix/libstore/local-store.cc (runAuthenticationProgram): New function. (LocalStore::exportPath, LocalStore::importPath): Use it instead of 'runProgram' and OPENSSL_PATH.