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[3.9] gh-113171: gh-65056: Fix "private" (non-global) IP address ranges (GH-113179) (GH-113186) (GH-118177)#118472
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…s ranges (pythonGH-113179) (pythonGH-113186) (pythonGH-118177)*pythonGH-113171: Fix "private" (non-global) IP address ranges (pythonGH-113179)The _private_networks variables, used by various is_privateimplementations, were missing some ranges and at the same time hadoverly strict ranges (where there are more specific ranges consideredglobally reachable by the IANA registries).This patch updates the ranges with what was missing or otherwiseincorrect.100.64.0.0/10 is left alone, for now, as it's been made special in [1].The _address_exclude_many() call returns 8 networks for IPv4, 121networks for IPv6.[1]python#61602*pythonGH-65056: Improve the IP address' is_global/is_private documentation (pythonGH-113186)It wasn't clear what the semantics of is_global/is_private are and, whenone gets to the bottom of it, it's not quite so simple (hence theexceptions listed).(cherry picked from commit2a4cbf1)(cherry picked from commit40d75c2)---------(cherry picked from commitf86b17a)Co-authored-by: Jakub Stasiak <jakub@stasiak.at>
In 3.10 and below, is_private checks whether the network and broadcastaddress are both private.In later versions (where the test wss backported from), it checkswhether they both are in the same private network.For 0.0.0.0/0, both 0.0.0.0 and 255.225.255.255 are private,but one is in 0.0.0.0/8 ("This network") and the other in255.255.255.255/32 ("Limited broadcast").That's a lot of semicolons!
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misterdjules commentedJun 18, 2024
Is there a way to track when this will make it into a 3.9.20 release? Thank you! |
frenzymadness pushed a commit to frenzymadness/cpython that referenced this pull requestAug 13, 2024
… address ranges (pythonGH-113179) (pythonGH-113186) (pythonGH-118177) (pythonGH-118472)The _private_networks variables, used by various is_privateimplementations, were missing some ranges and at the same time hadoverly strict ranges (where there are more specific ranges consideredglobally reachable by the IANA registries).This patch updates the ranges with what was missing or otherwiseincorrect.100.64.0.0/10 is left alone, for now, as it's been made special in [1].The _address_exclude_many() call returns 8 networks for IPv4, 121networks for IPv6.[1]python#61602In 3.10 and below, is_private checks whether the network and broadcastaddress are both private.In later versions (where the test wss backported from), it checkswhether they both are in the same private network.For 0.0.0.0/0, both 0.0.0.0 and 255.225.255.255 are private,but one is in 0.0.0.0/8 ("This network") and the other in255.255.255.255/32 ("Limited broadcast").---------Co-authored-by: Jakub Stasiak <jakub@stasiak.at>
frenzymadness pushed a commit to fedora-python/cpython that referenced this pull requestAug 15, 2024
… address ranges (pythonGH-113179) (pythonGH-113186) (pythonGH-118177) (pythonGH-118472)The _private_networks variables, used by various is_privateimplementations, were missing some ranges and at the same time hadoverly strict ranges (where there are more specific ranges consideredglobally reachable by the IANA registries).This patch updates the ranges with what was missing or otherwiseincorrect.100.64.0.0/10 is left alone, for now, as it's been made special in [1].The _address_exclude_many() call returns 8 networks for IPv4, 121networks for IPv6.[1]python#61602In 3.10 and below, is_private checks whether the network and broadcastaddress are both private.In later versions (where the test wss backported from), it checkswhether they both are in the same private network.For 0.0.0.0/0, both 0.0.0.0 and 255.225.255.255 are private,but one is in 0.0.0.0/8 ("This network") and the other in255.255.255.255/32 ("Limited broadcast").---------Co-authored-by: Jakub Stasiak <jakub@stasiak.at>
stratakis pushed a commit to stratakis/cpython that referenced this pull requestAug 15, 2024
… address ranges (pythonGH-113179) (pythonGH-113186) (pythonGH-118177) (pythonGH-118472)The _private_networks variables, used by various is_privateimplementations, were missing some ranges and at the same time hadoverly strict ranges (where there are more specific ranges consideredglobally reachable by the IANA registries).This patch updates the ranges with what was missing or otherwiseincorrect.100.64.0.0/10 is left alone, for now, as it's been made special in [1].The _address_exclude_many() call returns 8 networks for IPv4, 121networks for IPv6.[1]python#61602In 3.10 and below, is_private checks whether the network and broadcastaddress are both private.In later versions (where the test wss backported from), it checkswhether they both are in the same private network.For 0.0.0.0/0, both 0.0.0.0 and 255.225.255.255 are private,but one is in 0.0.0.0/8 ("This network") and the other in255.255.255.255/32 ("Limited broadcast").
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Note that 3.10 & below has slightly different semantics of
is_privateon networks; see the second commit here.GH-113171: Fix "private" (non-global) IP address ranges (GH-113179)
The _private_networks variables, used by various is_private implementations,
were missing some ranges and at the same time had overly strict ranges
(where there are more specific ranges considered globally reachable by
the IANA registries).
This patch updates the ranges with what was missing or otherwise incorrect.
100.64.0.0/10 is left alone, for now, as it's been made special in [1].
The _address_exclude_many() call returns 8 networks for IPv4, 121 networks for IPv6.
[1]#61602
(cherry picked from commit2a4cbf1)
GH-65056: Improve the IP address' is_global/is_private documentation (GH-113186)
It wasn't clear what the semantics of is_global/is_private are and,
when one gets to the bottom of it, it's not quite so simple (hence
the exceptions listed).
(cherry picked from commit40d75c2)
(cherry picked from commitf86b17a)