Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* INET protocol dispatch tables.
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*
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* Authors: Ross Biro
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* Fixes:
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* Alan Cox : Ahah! udp icmp errors don't work because
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* udp_err is never called!
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* Alan Cox : Added new fields for init and ready for
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* proper fragmentation (_NO_ 4K limits!)
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* Richard Colella : Hang on hash collision
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* Vince Laviano : Modified inet_del_protocol() to correctly
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* maintain copy bit.
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*/
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#include <linux/cache.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/spinlock.h>
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#include <net/protocol.h>
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struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS] __read_mostly;
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EXPORT_SYMBOL(inet_protos);
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const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS] __read_mostly;
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EXPORT_SYMBOL(inet_offloads);
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int inet_add_protocol(const struct net_protocol *prot, unsigned char protocol)
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{
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return !cmpxchg((const struct net_protocol **)&inet_protos[protocol],
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NULL, prot) ? 0 : -1;
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}
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EXPORT_SYMBOL(inet_add_protocol);
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int inet_add_offload(const struct net_offload *prot, unsigned char protocol)
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{
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return !cmpxchg((const struct net_offload **)&inet_offloads[protocol],
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NULL, prot) ? 0 : -1;
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}
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EXPORT_SYMBOL(inet_add_offload);
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int inet_del_protocol(const struct net_protocol *prot, unsigned char protocol)
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{
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int ret;
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ret = (cmpxchg((const struct net_protocol **)&inet_protos[protocol],
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prot, NULL) == prot) ? 0 : -1;
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synchronize_net();
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return ret;
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}
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EXPORT_SYMBOL(inet_del_protocol);
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int inet_del_offload(const struct net_offload *prot, unsigned char protocol)
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{
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int ret;
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ret = (cmpxchg((const struct net_offload **)&inet_offloads[protocol],
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prot, NULL) == prot) ? 0 : -1;
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synchronize_net();
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return ret;
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}
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EXPORT_SYMBOL(inet_del_offload);
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