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-rw-r--r--pkg/abi/linux/BUILD1
-rw-r--r--pkg/abi/linux/errqueue.go93
-rw-r--r--pkg/abi/linux/fadvise.go1
-rw-r--r--pkg/abi/linux/fcntl.go2
-rw-r--r--pkg/abi/linux/fuse.go8
-rw-r--r--pkg/abi/linux/ipc.go14
-rw-r--r--pkg/abi/linux/netfilter_ipv6.go1
-rw-r--r--pkg/abi/linux/sched.go1
-rw-r--r--pkg/abi/linux/seccomp.go2
-rw-r--r--pkg/abi/linux/sem.go40
-rw-r--r--pkg/abi/linux/socket.go20
11 files changed, 171 insertions, 12 deletions
diff --git a/pkg/abi/linux/BUILD b/pkg/abi/linux/BUILD
index a0654df2f..8fa61d6f7 100644
--- a/pkg/abi/linux/BUILD
+++ b/pkg/abi/linux/BUILD
@@ -21,6 +21,7 @@ go_library(
"epoll_amd64.go",
"epoll_arm64.go",
"errors.go",
+ "errqueue.go",
"eventfd.go",
"exec.go",
"fadvise.go",
diff --git a/pkg/abi/linux/errqueue.go b/pkg/abi/linux/errqueue.go
new file mode 100644
index 000000000..3905d4222
--- /dev/null
+++ b/pkg/abi/linux/errqueue.go
@@ -0,0 +1,93 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package linux
+
+import (
+ "gvisor.dev/gvisor/pkg/marshal"
+)
+
+// Socket error origin codes as defined in include/uapi/linux/errqueue.h.
+const (
+ SO_EE_ORIGIN_NONE = 0
+ SO_EE_ORIGIN_LOCAL = 1
+ SO_EE_ORIGIN_ICMP = 2
+ SO_EE_ORIGIN_ICMP6 = 3
+)
+
+// SockExtendedErr represents struct sock_extended_err in Linux defined in
+// include/uapi/linux/errqueue.h.
+//
+// +marshal
+type SockExtendedErr struct {
+ Errno uint32
+ Origin uint8
+ Type uint8
+ Code uint8
+ Pad uint8
+ Info uint32
+ Data uint32
+}
+
+// SockErrCMsg represents the IP*_RECVERR control message.
+type SockErrCMsg interface {
+ marshal.Marshallable
+
+ CMsgLevel() uint32
+ CMsgType() uint32
+}
+
+// SockErrCMsgIPv4 is the IP_RECVERR control message used in
+// recvmsg(MSG_ERRQUEUE) by ipv4 sockets. This is equilavent to `struct errhdr`
+// defined in net/ipv4/ip_sockglue.c:ip_recv_error().
+//
+// +marshal
+type SockErrCMsgIPv4 struct {
+ SockExtendedErr
+ Offender SockAddrInet
+}
+
+var _ SockErrCMsg = (*SockErrCMsgIPv4)(nil)
+
+// CMsgLevel implements SockErrCMsg.CMsgLevel.
+func (*SockErrCMsgIPv4) CMsgLevel() uint32 {
+ return SOL_IP
+}
+
+// CMsgType implements SockErrCMsg.CMsgType.
+func (*SockErrCMsgIPv4) CMsgType() uint32 {
+ return IP_RECVERR
+}
+
+// SockErrCMsgIPv6 is the IPV6_RECVERR control message used in
+// recvmsg(MSG_ERRQUEUE) by ipv6 sockets. This is equilavent to `struct errhdr`
+// defined in net/ipv6/datagram.c:ipv6_recv_error().
+//
+// +marshal
+type SockErrCMsgIPv6 struct {
+ SockExtendedErr
+ Offender SockAddrInet6
+}
+
+var _ SockErrCMsg = (*SockErrCMsgIPv6)(nil)
+
+// CMsgLevel implements SockErrCMsg.CMsgLevel.
+func (*SockErrCMsgIPv6) CMsgLevel() uint32 {
+ return SOL_IPV6
+}
+
+// CMsgType implements SockErrCMsg.CMsgType.
+func (*SockErrCMsgIPv6) CMsgType() uint32 {
+ return IPV6_RECVERR
+}
diff --git a/pkg/abi/linux/fadvise.go b/pkg/abi/linux/fadvise.go
index b06ff9964..97e2e4532 100644
--- a/pkg/abi/linux/fadvise.go
+++ b/pkg/abi/linux/fadvise.go
@@ -14,6 +14,7 @@
package linux
+// Fadvise constants.
const (
POSIX_FADV_NORMAL = 0
POSIX_FADV_RANDOM = 1
diff --git a/pkg/abi/linux/fcntl.go b/pkg/abi/linux/fcntl.go
index cc3571fad..d1ca56370 100644
--- a/pkg/abi/linux/fcntl.go
+++ b/pkg/abi/linux/fcntl.go
@@ -25,6 +25,8 @@ const (
F_SETLKW = 7
F_SETOWN = 8
F_GETOWN = 9
+ F_SETSIG = 10
+ F_GETSIG = 11
F_SETOWN_EX = 15
F_GETOWN_EX = 16
F_DUPFD_CLOEXEC = 1024 + 6
diff --git a/pkg/abi/linux/fuse.go b/pkg/abi/linux/fuse.go
index d91c97a64..1070b457c 100644
--- a/pkg/abi/linux/fuse.go
+++ b/pkg/abi/linux/fuse.go
@@ -19,16 +19,22 @@ import (
"gvisor.dev/gvisor/pkg/marshal/primitive"
)
+// FUSEOpcode is a FUSE operation code.
+//
// +marshal
type FUSEOpcode uint32
+// FUSEOpID is a FUSE operation ID.
+//
// +marshal
type FUSEOpID uint64
// FUSE_ROOT_ID is the id of root inode.
const FUSE_ROOT_ID = 1
-// Opcodes for FUSE operations. Analogous to the opcodes in include/linux/fuse.h.
+// Opcodes for FUSE operations.
+//
+// Analogous to the opcodes in include/linux/fuse.h.
const (
FUSE_LOOKUP FUSEOpcode = 1
FUSE_FORGET = 2 /* no reply */
diff --git a/pkg/abi/linux/ipc.go b/pkg/abi/linux/ipc.go
index c6e65df62..f84144355 100644
--- a/pkg/abi/linux/ipc.go
+++ b/pkg/abi/linux/ipc.go
@@ -14,8 +14,9 @@
package linux
-// Control commands used with semctl, shmctl, and msgctl. Source:
-// include/uapi/linux/ipc.h.
+// Control commands used with semctl, shmctl, and msgctl.
+//
+// Source: include/uapi/linux/ipc.h.
const (
IPC_RMID = 0
IPC_SET = 1
@@ -23,14 +24,19 @@ const (
IPC_INFO = 3
)
-// resource get request flags. Source: include/uapi/linux/ipc.h
+// Resource get request flags.
+//
+// Source: include/uapi/linux/ipc.h
const (
IPC_CREAT = 00001000
IPC_EXCL = 00002000
IPC_NOWAIT = 00004000
)
-const IPC_PRIVATE = 0
+// IPC flags.
+const (
+ IPC_PRIVATE = 0
+)
// In Linux, amd64 does not enable CONFIG_ARCH_WANT_IPC_PARSE_VERSION, so SysV
// IPC unconditionally uses the "new" 64-bit structures that are needed for
diff --git a/pkg/abi/linux/netfilter_ipv6.go b/pkg/abi/linux/netfilter_ipv6.go
index 6d31eb5e3..bcb57642e 100644
--- a/pkg/abi/linux/netfilter_ipv6.go
+++ b/pkg/abi/linux/netfilter_ipv6.go
@@ -288,6 +288,7 @@ type IP6TIP struct {
_ [3]byte
}
+// SizeOfIP6TIP is the size of an IP6 header.
const SizeOfIP6TIP = 136
// Flags in IP6TIP.Flags. Corresponding constants are in
diff --git a/pkg/abi/linux/sched.go b/pkg/abi/linux/sched.go
index 70e820823..2a67921e6 100644
--- a/pkg/abi/linux/sched.go
+++ b/pkg/abi/linux/sched.go
@@ -29,6 +29,7 @@ const (
SCHED_RESET_ON_FORK = 0x40000000
)
+// Scheduling priority group selectors.
const (
PRIO_PGRP = 0x1
PRIO_PROCESS = 0x0
diff --git a/pkg/abi/linux/seccomp.go b/pkg/abi/linux/seccomp.go
index 5be3f10f9..e64501fac 100644
--- a/pkg/abi/linux/seccomp.go
+++ b/pkg/abi/linux/seccomp.go
@@ -30,8 +30,10 @@ const (
SECCOMP_GET_ACTION_AVAIL = 2
)
+// BPFAction is an action for a BPF filter.
type BPFAction uint32
+// BPFAction definitions.
const (
SECCOMP_RET_KILL_PROCESS BPFAction = 0x80000000
SECCOMP_RET_KILL_THREAD BPFAction = 0x00000000
diff --git a/pkg/abi/linux/sem.go b/pkg/abi/linux/sem.go
index 1b2f76c0b..bc7b4f0ee 100644
--- a/pkg/abi/linux/sem.go
+++ b/pkg/abi/linux/sem.go
@@ -32,7 +32,27 @@ const (
SEM_STAT_ANY = 20
)
-const SEM_UNDO = 0x1000
+// Information about system-wide sempahore limits and parameters.
+//
+// Source: include/uapi/linux/sem.h
+const (
+ SEMMNI = 32000
+ SEMMSL = 32000
+ SEMMNS = SEMMNI * SEMMSL
+ SEMOPM = 500
+ SEMVMX = 32767
+ SEMAEM = SEMVMX
+
+ SEMUME = SEMOPM
+ SEMMNU = SEMMNS
+ SEMMAP = SEMMNS
+ SEMUSZ = 20
+)
+
+// Semaphore flags.
+const (
+ SEM_UNDO = 0x1000
+)
// Sembuf is equivalent to struct sembuf.
//
@@ -42,3 +62,21 @@ type Sembuf struct {
SemOp int16
SemFlg int16
}
+
+// SemInfo is equivalent to struct seminfo.
+//
+// Source: include/uapi/linux/sem.h
+//
+// +marshal
+type SemInfo struct {
+ SemMap uint32
+ SemMni uint32
+ SemMns uint32
+ SemMnu uint32
+ SemMsl uint32
+ SemOpm uint32
+ SemUme uint32
+ SemUsz uint32
+ SemVmx uint32
+ SemAem uint32
+}
diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go
index d156d41e4..8591acbf2 100644
--- a/pkg/abi/linux/socket.go
+++ b/pkg/abi/linux/socket.go
@@ -111,12 +111,12 @@ type SockType int
// Socket types, from linux/net.h.
const (
SOCK_STREAM SockType = 1
- SOCK_DGRAM = 2
- SOCK_RAW = 3
- SOCK_RDM = 4
- SOCK_SEQPACKET = 5
- SOCK_DCCP = 6
- SOCK_PACKET = 10
+ SOCK_DGRAM SockType = 2
+ SOCK_RAW SockType = 3
+ SOCK_RDM SockType = 4
+ SOCK_SEQPACKET SockType = 5
+ SOCK_DCCP SockType = 6
+ SOCK_PACKET SockType = 10
)
// SOCK_TYPE_MASK covers all of the above socket types. The remaining bits are
@@ -250,6 +250,12 @@ type SockAddrInet struct {
_ [8]uint8 // pad to sizeof(struct sockaddr).
}
+// Inet6MulticastRequest is struct ipv6_mreq, from uapi/linux/in6.h.
+type Inet6MulticastRequest struct {
+ MulticastAddr Inet6Addr
+ InterfaceIndex int32
+}
+
// InetMulticastRequest is struct ip_mreq, from uapi/linux/in.h.
type InetMulticastRequest struct {
MulticastAddr InetAddr
@@ -448,6 +454,8 @@ type ControlMessageCredentials struct {
// A ControlMessageIPPacketInfo is IP_PKTINFO socket control message.
//
// ControlMessageIPPacketInfo represents struct in_pktinfo from linux/in.h.
+//
+// +stateify savable
type ControlMessageIPPacketInfo struct {
NIC int32
LocalAddr InetAddr
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-08 03:27:02 +0000