3e668c6d02
ChangeLog: https://github.com/ppp-project/ppp/blob/ppp-2.5.1/ChangeLog Suppressed patches: 010-use_target_for_configure.patch [1] 510-pptp_compile_fix.patch [2] 520-u_int_bsd_fix.patch [3] Upstreamed patches: 330-retain_foreign_default_routes.patch [4] 521-remove_unused_openssl_dep.patch [5] [1]e48a9b5de4[2] Merged into "500-add-pptp-plugin.patch" [3]797cdae57c[4]9856f47063[5]59342ab622Signed-off-by: Shiji Yang <yangshiji66@qq.com> Link: https://github.com/openwrt/openwrt/pull/16605 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
25 lines
997 B
Diff
25 lines
997 B
Diff
pppd: Cap MTU to the user configured value
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This patchs caps the calculated MTU value in lcp.c to the user specified "mru"
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option value. Without this patch pppd would advertise a different MTU value
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compared to what is set on the local interface in some cases.
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Signed-off-by: Jo-Philipp Wich <jo@mein.io>
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--- a/pppd/lcp.c
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+++ b/pppd/lcp.c
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@@ -1888,12 +1888,12 @@ lcp_up(fsm *f)
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* the interface MTU is set to the lowest of that, the
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* MTU we want to use, and our link MRU.
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*/
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- mtu = ho->neg_mru? ho->mru: PPP_MRU;
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+ mtu = MIN(ho->neg_mru? ho->mru: PPP_MRU, ao->mru);
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mru = go->neg_mru? MAX(wo->mru, go->mru): PPP_MRU;
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#ifdef PPP_WITH_MULTILINK
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if (!(multilink && go->neg_mrru && ho->neg_mrru))
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#endif /* PPP_WITH_MULTILINK */
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- ppp_set_mtu(f->unit, MIN(MIN(mtu, mru), ao->mru));
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+ ppp_set_mtu(f->unit, MIN(mtu, mru));
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ppp_send_config(f->unit, mtu,
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(ho->neg_asyncmap? ho->asyncmap: 0xffffffff),
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ho->neg_pcompression, ho->neg_accompression);
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