diff options
| -rw-r--r-- | conf.c | 7 | ||||
| -rw-r--r-- | dhcp.c | 10 | ||||
| -rw-r--r-- | passt.1 | 7 |
3 files changed, 23 insertions, 1 deletions
@@ -634,7 +634,8 @@ static void usage(const char *name, FILE *f, int status) " a single, empty option disables the DNS search list\n" " -H, --hostname NAME Hostname to configure client with\n" " --fqdn NAME FQDN to configure client with\n" - " --dhcp-opt CODE,VAL Set DHCP option CODE to VAL\n"); + " --dhcp-opt CODE,VAL Set DHCP option CODE to VAL\n" + " --dhcp-boot FILE Boot file name for network boot\n"); if (strstr(name, "pasta")) FPRINTF(f, " default: don't use any search list\n"); else @@ -1324,6 +1325,7 @@ void conf(struct ctx *c, int argc, char **argv) {"chroot-fallback", no_argument, NULL, 32 }, {"no-pidns", no_argument, NULL, 33 }, {"dhcp-opt", required_argument, NULL, 34 }, + {"dhcp-boot", required_argument, NULL, 35 }, { 0 }, }; const char *optstring = "+dqfel:hs:c:F:I:p:P:m:a:n:M:g:i:o:D:S:H:461t:u:T:U:"; @@ -1590,6 +1592,9 @@ void conf(struct ctx *c, int argc, char **argv) dhcp_set_opt(optcode, p); break; + case 35: + dhcp_set_opt(67, optarg); + break; case 'd': c->debug = 1; c->quiet = 0; @@ -600,6 +600,7 @@ int dhcp(const struct ctx *c, struct iov_tail *data) const struct udphdr *uh; struct msg m_storage; struct msg const *m; + bool has_bootfile; struct msg reply; unsigned int i; @@ -772,8 +773,17 @@ int dhcp(const struct ctx *c, struct iov_tail *data) if (!c->no_dhcp_dns_search) opt_set_dns_search(c, sizeof(m->o)); + /* RFC 2132, Section 9.5: put boot file name in the 'file' header + * field. + */ + has_bootfile = opts[67].slen > 0 && + (size_t)opts[67].slen < sizeof(reply.file); + dlen = offsetof(struct msg, o) + fill(&reply); + if (has_bootfile) + memcpy(reply.file, opts[67].s, opts[67].slen); + if (m->flags & FLAG_BROADCAST) dst = in4addr_broadcast; else @@ -482,6 +482,13 @@ Only the following option codes are supported (unsupported codes cause an error) .RE .TP +.BR \-\-dhcp-boot " " \fIfile +Convenience shorthand for \fB\-\-dhcp-opt\fR 67,\fIfile\fR. +Sets the boot file name (DHCP option 67) for network boot. +For UEFI HTTP boot, the vendor class identifier also needs to be set using +\fB\-\-dhcp-opt\fR 60,HTTPClient. + +.TP .BR \-t ", " \-\-tcp-ports " " \fIspec Configure TCP port forwarding to guest or namespace. \fIspec\fR can be either: .RS |