[syserror] Change syserror to linuxerr for E2BIG, EADDRINUSE, and EINVAL

Remove three syserror entries duplicated in linuxerr. Because of the
linuxerr.Equals method, this is a mere change of return values from
syserror to linuxerr definitions.

Done with only these three errnos as CLs removing all grow to a significantly
large size.

PiperOrigin-RevId: 382173835

2 files changed, 7 insertions, 6 deletions

diff --git a/pkg/sentry/socket/netstack/stack.go b/pkg/sentry/socket/netstack/stack.go
index eef5e6519..9d343b671 100644
--- a/pkg/sentry/socket/netstack/stack.go
+++ b/pkg/sentry/socket/netstack/stack.go
@@ -18,6 +18,7 @@ import (
 	"fmt"
 
 	"gvisor.dev/gvisor/pkg/abi/linux"
+	"gvisor.dev/gvisor/pkg/errors/linuxerr"
 	"gvisor.dev/gvisor/pkg/log"
 	"gvisor.dev/gvisor/pkg/sentry/inet"
 	"gvisor.dev/gvisor/pkg/syserr"
@@ -110,19 +111,19 @@ func convertAddr(addr inet.InterfaceAddr) (tcpip.ProtocolAddress, error) {
 	switch addr.Family {
 	case linux.AF_INET:
 		if len(addr.Addr) != header.IPv4AddressSize {
-			return protocolAddress, syserror.EINVAL
+			return protocolAddress, linuxerr.EINVAL
 		}
 		if addr.PrefixLen > header.IPv4AddressSize*8 {
-			return protocolAddress, syserror.EINVAL
+			return protocolAddress, linuxerr.EINVAL
 		}
 		protocol = ipv4.ProtocolNumber
 		address = tcpip.Address(addr.Addr)
 	case linux.AF_INET6:
 		if len(addr.Addr) != header.IPv6AddressSize {
-			return protocolAddress, syserror.EINVAL
+			return protocolAddress, linuxerr.EINVAL
 		}
 		if addr.PrefixLen > header.IPv6AddressSize*8 {
-			return protocolAddress, syserror.EINVAL
+			return protocolAddress, linuxerr.EINVAL
 		}
 		protocol = ipv6.ProtocolNumber
 		address = tcpip.Address(addr.Addr)
diff --git a/pkg/sentry/socket/netstack/tun.go b/pkg/sentry/socket/netstack/tun.go
index c7ed52702..e67fe9700 100644
--- a/pkg/sentry/socket/netstack/tun.go
+++ b/pkg/sentry/socket/netstack/tun.go
@@ -16,7 +16,7 @@ package netstack
 
 import (
 	"gvisor.dev/gvisor/pkg/abi/linux"
-	"gvisor.dev/gvisor/pkg/syserror"
+	"gvisor.dev/gvisor/pkg/errors/linuxerr"
 	"gvisor.dev/gvisor/pkg/tcpip/link/tun"
 )
 
@@ -41,7 +41,7 @@ func LinuxToTUNFlags(flags uint16) (tun.Flags, error) {
 	// when there is no sk_filter. See __tun_chr_ioctl() in
 	// net/drivers/tun.c.
 	if flags&^uint16(linux.IFF_TUN|linux.IFF_TAP|linux.IFF_NO_PI|linux.IFF_ONE_QUEUE) != 0 {
-		return tun.Flags{}, syserror.EINVAL
+		return tun.Flags{}, linuxerr.EINVAL
 	}
 	return tun.Flags{
 		TUN:          flags&linux.IFF_TUN != 0,