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| author | Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> | 2021-06-17 18:01:32 +0900 |
|---|---|---|
| committer | Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> | 2021-06-18 16:39:56 +0900 |
| commit | c9f314f6e315a5518432761fea864196a290f799 (patch) | |
| tree | bef584a56bd96808619fc3cb425e11c3da307a64 | |
| parent | 6ef66db79938d763212320c1b64bc562c23d25a8 (diff) | |
| download | slirp-c9f314f6e315a5518432761fea864196a290f799.zip slirp-c9f314f6e315a5518432761fea864196a290f799.tar.gz slirp-c9f314f6e315a5518432761fea864196a290f799.tar.bz2 | |
Fix "DHCP broken in libslirp v4.6.0"
Fix issue 48
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
| -rw-r--r-- | src/bootp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/bootp.c b/src/bootp.c index cafa1eb..0a35873 100644 --- a/src/bootp.c +++ b/src/bootp.c @@ -359,7 +359,9 @@ static void bootp_reply(Slirp *slirp, daddr.sin_addr.s_addr = 0xffffffffu; - m->m_len = sizeof(struct bootp_t) - sizeof(struct ip) - sizeof(struct udphdr); + assert ((q - rbp->bp_vend + 1) <= DHCP_OPT_LEN); + + m->m_len = sizeof(struct bootp_t) + (q - rbp->bp_vend + 1) - sizeof(struct ip) - sizeof(struct udphdr); udp_output(NULL, m, &saddr, &daddr, IPTOS_LOWDELAY); } |