src/sys/netinet/libalias, branch releng/8.3

MFC r223437:

2011-07-28T10:16:30Z

Export AddLink() function from libalias. It can be used when custom alias address needs to be specified. Add inbound handler to the alias_ftp module. It helps handle active FTP transfer mode for the case with external clients and FTP server behind NAT. Fix passive FTP transfer case for server behind NAT using redirect with external IP address different from NAT ip address. PR: kern/157957 Submitted by: Alexander V. Chernikov

MFC r223080:

2011-07-28T10:10:39Z

Implement "global" mode for ipfw nat. It is similar to natd(8) "globalport" option for multiple NAT instances. If ipfw rule contains "global" keyword instead of nat_number, then for each outgoing packet ipfw_nat looks up translation state in all configured nat instances. If an entry is found, packet aliased according to that entry, otherwise packet is passed unchanged. User can specify "skip_global" option in NAT configuration to exclude an instance from the lookup in global mode. PR: kern/157867 Submitted by: Alexander V. Chernikov (previous version)

MFC 223773:

2011-07-26T19:05:10Z

- General grammar and mdoc(7) fixes. - While here, remove a paragraph about userspace operation that has been outdated for some time. PR: 158623

Merge from head/ 220800,220837,220914:

2011-07-08T14:30:06Z

Log: LibAliasInit() should allocate memory with M_WAITOK flag. Modify it and its callers. Log: - Rewrite functions that copyin/out NAT configuration, so that they calculate required memory size dynamically. - Fix races on chain re-lock. - Introduce new field to ip_fw_chain - generation count. Now utilized only in the NAT configuration, but can be utilized wider in ipfw. - Get rid of NAT_BUF_LEN in ip_fw.h PR: kern/143653

MFC r218909:

2011-02-24T10:23:22Z

Fix typos - remove duplicate "the". PR: bin/154928 Submitted by: Eitan Adler

MFC r214754:

2010-11-22T22:41:43Z

Don't spam the console with 'Loading ' messages. This cannot be hidden behind 'bootverbose' as this file is included from userland.

MFC r215153:

2010-11-16T00:01:44Z

Standardise all Swinburne related copyright/licence statements throughout the tree in preparation for another large code import. Swinburne University is the legal entity that owns copyright and the 2-clause BSD licence is acceptable.

MFC r215152:

2010-11-15T23:51:11Z

The university does not require that its CRICOS number be included in source code. Remove all references from the tree.

MFC a number of changes from head for ISP (203478,203463,203444,202418,201758,

2010-02-11T18:34:06Z

201408,201325,200089,198822,197373,197372,197214,196162). Since one of those changes was a semicolon cleanup from somebody else, this touches a lot more.

MFC r201145 to stable/8:

2010-01-30T12:11:21Z

(S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument. Fix some wrong usages. Note: this does not affect generated binaries as this argument is not used. PR: 137213 Submitted by: Eygene Ryabinkin (initial version)