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79 Commits

Author SHA1 Message Date
David Thompson ee78d02452 build: container: Use the same clone flags as fork(3). 
The intent is to make 'clone' behave a lot more like 'primitive-fork', which
calls clone(2) with SIGCHLD, CLONE_CHILD_CLEARTID, and CLONE_CHILD_SETTID
flags.  Notably, running 'clone' at the REPL without these flags would break
the REPL beyond repair.

* guix/build/syscalls.scm (CLONE_CHILD_CLEARTID, CLONE_CHILD_SETTID): New
  variables.
* gnu/build/linux-container.scm (namespaces->bit-mask): Add
  CLONE_CHILD_CLEARTID and CLONE_CHILD_SETTID to bit mask.
 2015-09-07 13:09:58 -04:00
David Thompson cf897cbacc build: syscalls: Properly handle clone errors. 
* guix/build/syscalls.scm (clone): Catch -1 return value and throw error.
 2015-09-05 13:42:02 -04:00
David Thompson 39e336b5c8 syscalls: setns: Skip binding if there is no such C function. 
On systems with a glibc prior to 2.14, the 'setns' function is not available.

Thanks to Eric Bavier for reporting the issue.

* guix/build/syscalls.scm (setns): Wrap with 'false-if-exception'.
 2015-08-17 14:51:18 -04:00
Ludovic Courtès e7f5691d45 syscalls: Add 'network-interfaces', which wraps libc's 'getifaddrs'. 
Based on discussions with Rohan Prinja <rohan.prinja@gmail.com>.

* guix/build/syscalls.scm (<interface>): New record type.
  (write-interface, values->interface, unfold-interface-list,
  network-interfaces, free-ifaddrs): New procedures.
  (ifaddrs): New C struct.
  (%struct-ifaddrs-type, %sizeof-ifaddrs): New macros.
* tests/syscalls.scm ("network-interfaces returns one or more interfaces",
  "network-interfaces returns \"lo\""): New tests.
 2015-07-25 14:43:45 +02:00
Ludovic Courtès 573b4c1ff3 syscalls: 'define-c-struct' properly align reads. 
* guix/build/syscalls.scm (alignof*, align): New macros.
  (write-types, read-types): Use 'align' to compute the actual offset to
  read/write a value of TYPE0.
 2015-07-25 14:43:45 +02:00
Ludovic Courtès 3ca337699a syscalls: 'read-socket-address' gracefully handles unsupported families. 
* guix/build/syscalls.scm (PF_PACKET, AF_PACKET): New variables.
  (read-socket-address): Make 'index' optional.  Return (vector FAMILY) when
  FAMILY is neither AF_INET nor AF_INET6.
 2015-07-25 14:43:44 +02:00
Ludovic Courtès 4a30e84e61 syscalls: 'define-c-struct' distinguishes pointers from integers. 
* guix/build/syscalls.scm (read-type): Add special-case for when TYPE is '*.
 2015-07-25 14:43:44 +02:00
Ludovic Courtès b89e74054e syscalls: Rename 'network-interfaces' and 'all-network-interfaces'. 
* guix/build/syscalls.scm (network-interfaces): Rename to...
  (network-interface-names): ... this.
  (all-network-interfaces): Rename to...
  (all-network-interface-names): ... this.
* gnu/services/networking.scm (dhcp-client-service): Adjust accordingly.
* tests/syscalls.scm ("all-network-interfaces"): Rename to...
  ("all-network-interface-names"): ... this, and adjust accordingly.
  ("network-interfaces"): Rename to...
  ("network-interface-names"): ... this, and adjust accordingly.
 2015-07-25 14:43:44 +02:00
Ludovic Courtès 13f0c6ed41 syscalls: Struct deserializer can now return arbitrary objects. 
* guix/build/syscalls.scm (read-types): Add RETURN and VALUES parameters.
  (define-c-struct): Add WRAP-FIELDS parameter and pass it to 'read-types'.
  (sockaddr-in, sockaddr-in6): Add first argument that uses
  'make-socket-address'.
  (read-socket-address): Remove 'match' on the result of 'read-sockaddr-in'
  and 'read-sockaddr-in6'.
 2015-07-17 23:31:29 +02:00
David Thompson df3ce5c123 build: syscalls: Add pivot-root. 
* guix/build/syscalls.scm (pivot-root): New procedure.
* tests/syscalls.scm ("pivot-root"): New test.
 2015-07-07 21:16:25 -04:00
David Thompson 43ace6ea76 build: syscalls: Add setns. 
* guix/build/syscalls.scm (setns): New procedure.
* tests/syscalls.scm ("setns"): New test.

squash: setns
 2015-07-07 20:55:09 -04:00
David Thompson 8950ed11c6 build: syscalls: Add clone. 
* guix/build/syscalls.scm (clone): New procedure.
  (CLONE_NEWNS, CLONE_NEWUTS, CLONE_NEWIPC, CLONE_NEWUSER, CLONE_NEWPID,
  CLONE_NEWNET): New variables.
* tests/syscalls.scm ("clone"): New test.
 2015-07-07 20:35:08 -04:00
David Thompson b4abdeb63b build: syscalls: Add mkdtemp! 
* guix/build/syscalls.scm (mkdtemp!): New procedure.
* tests/syscalls.scm ("mkdtemp!"): New test.
 2015-07-07 18:46:44 -04:00
David Thompson b16d138a0a build: syscalls: Add unmount flags. 
* guix/build/syscalls.scm (MNT_FORCE, MNT_DETACH, MNT_EXPIRE)
  (UMOUNT_NOFOLLOW): New variables.
 2015-07-07 18:38:41 -04:00
David Thompson 577c02eb40 build: syscalls: Add additional mount flags. 
* guix/build/syscalls.scm (MS_NOSUID, MS_NODEV, MS_NOEXEC, MS_STRICTATIME):
  New variables.
 2015-07-07 18:38:41 -04:00
Ludovic Courtès 60a56db007 services: swap: Use 'restart-on-EINTR'. 
* gnu/services/base.scm (swap-service)[start, stop]: Use 'restart-on-EINTR'.
* guix/build/syscalls.scm (swapoff): Fix typo in 'throw' arguments.
 2015-05-22 11:51:12 +02:00
Ludovic Courtès ea98270443 syscalls: Add 'restart-on-EINTR'. 
* guix/build/syscalls.scm (call-with-restart-on-EINTR): New procedure.
  (restart-on-EINTR): New macro.
 2015-05-22 11:51:12 +02:00
Ludovic Courtès 6944fdbdbd syscalls: Add 'set-network-interface-up'. 
* guix/build/syscalls.scm (set-network-interface-up): New procedure.
 2015-05-17 23:20:59 +02:00
宋文武 9331ba5dd9 linux-boot: Make /etc/mtab a symlink to /proc/self/mounts. 
Fixes <http://bugs.gnu.org/19491>.

* gnu/build/linux-boot.scm (mount-root-file-system): Make /root/etc/mtab
  a symlink to /proc/self/mounts.
* gnu/build/file-systems.scm (mount-file-system): Don't update /etc/mtab.
* guix/build/syscalls.scm (mount, umount): Have #:update-mtab? default to
  #f.
 2015-01-05 22:24:00 +08:00
Ludovic Courtès c9bf64d6d7 syscalls: Add more procedures for network interfaces. 
* guix/build/syscalls.scm (sizeof*, type-size, write-type, write-types,
  read-type, read-types, define-c-struct): New macros.
  (SIOCSIFFLAGS, SIOCGIFADDR, SIOCSIFADDR): New variables.
  (sockaddr-in, sockaddr-in6): New C structs.
  (write-socket-address!, read-socket-address,
  set-network-interface-flags, set-network-interface-address,
  network-interface-address, configure-network-interface): New
  procedures.
 2014-12-19 17:15:53 +01:00
Ludovic Courtès cd4a3cb359 syscalls: Update /etc/mtab, not /etc/fstab. 
* guix/build/syscalls.scm (remove-from-mtab): Replace "fstab" with
  "mtab".
 2014-11-14 00:41:01 +01:00
Ludovic Courtès ccea821bef syscalls: Add 'mount-points'. 
* guix/build/syscalls.scm (mount-points): New procedure.
* tests/syscalls.scm ("mount-points"): New test.
 2014-11-10 22:42:14 +01:00
Ludovic Courtès 8591fae4cf syscalls: Adjust /proc/net/dev parser for old kernels. 
* guix/build/syscalls.scm (%interface-line): Remove whitespace in rest
  pattern.  (There's no extra whitespace after the colon with Linux
  2.6.32.)
 2014-09-22 21:12:26 +02:00
Ludovic Courtès 715fc9d44d syscalls: Add 'swapon' and 'swapoff'. 
* guix/build/syscalls.scm (swapon, swapoff): New procedures.
* tests/syscalls.scm ("swapon, ENOENT/EPERM", "swapoff, EINVAL/EPERM"):
  New tests.
 2014-09-18 20:19:56 +02:00
Ludovic Courtès 4d54785c69 syscalls: Add 'all-network-interfaces'. 
* guix/build/syscalls.scm (network-interfaces): Update docstring.
  (%interface-line): New variable.
  (all-network-interfaces): New procedure.
* tests/syscalls.scm ("all-network-interfaces"): New test.
  ("network-interfaces"): Change to make sure the result is a subset
  of (all-network-interfaces).
 2014-09-14 23:49:02 +02:00
Ludovic Courtès 973eea3478 syscalls: Add 'network-interface-flags'. 
* guix/build/syscalls.scm (SIOCGIFFLAGS, IFF_UP, IFF_BROADCAST,
  IFF_LOOPBACK, IF_NAMESIZE): New variables.
  (network-interface-flags, loopback-network-interface?): New
  procedures.
* tests/syscalls.scm ("network-interface-flags",
  "loopback-network-interface?"): New tests.
 2014-09-14 23:49:02 +02:00
Ludovic Courtès 7585016f53 syscalls: Add 'network-interfaces'. 
* guix/build/syscalls.scm (SIOCGIFCONF, ifconf-struct,
  ifreq-struct-size): New variables.
  (%ioctl, bytevector->string-list, network-interfaces): New
  procedures.
* tests/syscalls.scm ("network-interfaces"): New test.
 2014-09-14 23:49:02 +02:00
Ludovic Courtès 17a4d34489 syscalls: Add 'processes' to list all the live processes. 
* guix/build/syscalls.scm (kernel?, processes): New procedures.
 2014-05-14 19:07:03 +02:00
Ludovic Courtès 29fa45f45d Add (guix build syscalls). 
* guix/build/syscalls.scm, tests/syscalls.scm: New files.
* Makefile.am (MODULES): Add guix/build/syscalls.scm.
  (SCM_TESTS): Add tests/syscalls.scm.
* guix/utils.scm (%libc-errno-pointer, errno): Remove; take from (guix
  build syscalls).
 2014-05-10 22:55:34 +02:00