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sctp: move 198 addresses from unusable to private scope
[ Upstream commit 1d11fa231c
]
The doc draft-stewart-tsvwg-sctp-ipv4-00 that restricts 198 addresses
was never published. These addresses as private addresses should be
allowed to use in SCTP.
As Michael Tuexen suggested, this patch is to move 198 addresses from
unusable to private scope.
Reported-by: Sérgio <surkamp@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
e7d0a2680c
commit
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2 changed files with 3 additions and 4 deletions
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@ -348,8 +348,7 @@ enum {
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#define SCTP_SCOPE_POLICY_MAX SCTP_SCOPE_POLICY_LINK
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/* Based on IPv4 scoping <draft-stewart-tsvwg-sctp-ipv4-00.txt>,
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* SCTP IPv4 unusable addresses: 0.0.0.0/8, 224.0.0.0/4, 198.18.0.0/24,
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* 192.88.99.0/24.
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* SCTP IPv4 unusable addresses: 0.0.0.0/8, 224.0.0.0/4, 192.88.99.0/24.
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* Also, RFC 8.4, non-unicast addresses are not considered valid SCTP
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* addresses.
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*/
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@ -357,7 +356,6 @@ enum {
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((htonl(INADDR_BROADCAST) == a) || \
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ipv4_is_multicast(a) || \
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ipv4_is_zeronet(a) || \
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ipv4_is_test_198(a) || \
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ipv4_is_anycast_6to4(a))
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/* Flags used for the bind address copy functions. */
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@ -423,7 +423,8 @@ static enum sctp_scope sctp_v4_scope(union sctp_addr *addr)
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retval = SCTP_SCOPE_LINK;
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} else if (ipv4_is_private_10(addr->v4.sin_addr.s_addr) ||
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ipv4_is_private_172(addr->v4.sin_addr.s_addr) ||
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ipv4_is_private_192(addr->v4.sin_addr.s_addr)) {
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ipv4_is_private_192(addr->v4.sin_addr.s_addr) ||
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ipv4_is_test_198(addr->v4.sin_addr.s_addr)) {
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retval = SCTP_SCOPE_PRIVATE;
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} else {
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retval = SCTP_SCOPE_GLOBAL;
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