mirror of
https://github.com/Ysurac/openmptcprouter-feeds.git
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114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/*
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* sfe.h
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* Shortcut forwarding engine.
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*
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* Copyright (c) 2013-2017 The Linux Foundation. All rights reserved.
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all copies.
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* The following are debug macros used throughout the SFE.
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*
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* The DEBUG_LEVEL enables the followings based on its value,
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* when dynamic debug option is disabled.
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*
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* 0 = OFF
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* 1 = ASSERTS / ERRORS
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* 2 = 1 + WARN
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* 3 = 2 + INFO
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* 4 = 3 + TRACE
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*/
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#define DEBUG_LEVEL 2
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#if (DEBUG_LEVEL < 1)
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#define DEBUG_ASSERT(s, ...)
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#define DEBUG_ERROR(s, ...)
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#else
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#define DEBUG_ASSERT(c, s, ...) if (!(c)) { pr_emerg("ASSERT: %s:%d:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__); BUG(); }
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#define DEBUG_ERROR(s, ...) pr_err("%s:%d:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#endif
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#if defined(CONFIG_DYNAMIC_DEBUG)
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/*
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* Compile messages for dynamic enable/disable
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*/
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#define DEBUG_WARN(s, ...) pr_debug("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#define DEBUG_INFO(s, ...) pr_debug("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#define DEBUG_TRACE(s, ...) pr_debug("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#else
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/*
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* Statically compile messages at different levels
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*/
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#if (DEBUG_LEVEL < 2)
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#define DEBUG_WARN(s, ...)
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#else
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#define DEBUG_WARN(s, ...) pr_warn("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#endif
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#if (DEBUG_LEVEL < 3)
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#define DEBUG_INFO(s, ...)
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#else
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#define DEBUG_INFO(s, ...) pr_notice("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#endif
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#if (DEBUG_LEVEL < 4)
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#define DEBUG_TRACE(s, ...)
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#else
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#define DEBUG_TRACE(s, ...) pr_info("%s[%d]:" s, __FUNCTION__, __LINE__, ##__VA_ARGS__)
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#endif
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#endif
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#ifdef CONFIG_NF_FLOW_COOKIE
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typedef int (*flow_cookie_set_func_t)(u32 protocol, __be32 src_ip, __be16 src_port,
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__be32 dst_ip, __be16 dst_port, u16 flow_cookie);
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/*
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* sfe_register_flow_cookie_cb
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* register a function in SFE to let SFE use this function to configure flow cookie for a flow
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*
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* Hardware driver which support flow cookie should register a callback function in SFE. Then SFE
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* can use this function to configure flow cookie for a flow.
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* return: 0, success; !=0, fail
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*/
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int sfe_register_flow_cookie_cb(flow_cookie_set_func_t cb);
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/*
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* sfe_unregister_flow_cookie_cb
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* unregister function which is used to configure flow cookie for a flow
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*
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* return: 0, success; !=0, fail
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*/
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int sfe_unregister_flow_cookie_cb(flow_cookie_set_func_t cb);
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typedef int (*sfe_ipv6_flow_cookie_set_func_t)(u32 protocol, __be32 src_ip[4], __be16 src_port,
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__be32 dst_ip[4], __be16 dst_port, u16 flow_cookie);
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/*
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* sfe_ipv6_register_flow_cookie_cb
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* register a function in SFE to let SFE use this function to configure flow cookie for a flow
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*
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* Hardware driver which support flow cookie should register a callback function in SFE. Then SFE
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* can use this function to configure flow cookie for a flow.
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* return: 0, success; !=0, fail
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*/
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int sfe_ipv6_register_flow_cookie_cb(sfe_ipv6_flow_cookie_set_func_t cb);
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/*
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* sfe_ipv6_unregister_flow_cookie_cb
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* unregister function which is used to configure flow cookie for a flow
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*
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* return: 0, success; !=0, fail
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*/
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int sfe_ipv6_unregister_flow_cookie_cb(sfe_ipv6_flow_cookie_set_func_t cb);
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#endif /*CONFIG_NF_FLOW_COOKIE*/
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