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Date: Sun, 27 Dec 2009 10:39:28 +0900 From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp> To: michael@...top.org, linux-kernel@...r.kernel.org Cc: netdev@...r.kernel.org, linux-security-module@...r.kernel.org Subject: Re: [PATCH 3/3] Security: Document disablenetwork. (v4) Tetsuo Handa wrote > sendmsg(fd, (struct sockadr *) &addr, sizeof(addr)); I meant sendto(fd, buffer, len, 0, (struct sockadr *) &addr, sizeof(addr)); Michael Stone wrote: > +Exceptions are made for > + * processes calling sendmsg() on a previously connected socket > + (i.e. one with msg.msg_name == NULL && msg.msg_namelen == 0) or What should we do for non connection oriented protocols (e.g. UDP) but destination is already configured by previous connect() request? struct sockaddr_in addr = { ... }; int fd2 = socket(PF_INET, SOCK_DGRAM, 0); connect(fd2, (struct sockadr *) &addr, sizeof(addr)); prctl( ... ); sendto(fd2, buffer, len, 0, NULL, 0); /* Should we allow this? */ sendto(fd2, buffer, len, 0, (struct sockadr *) &addr, sizeof(addr)); /* Should we reject this? */ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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