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5 years ago
/*
* Copyright (c) 2017 Reyk Floeter <reyk@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/queue.h>
#include <sys/stat.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <err.h>
#include "main.h"
#include "http.h"
#include "xml.h"
static int cloudinit_fetch(struct system_config *);
int
ec2(struct system_config *sc)
{
free(sc->sc_username);
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if ((sc->sc_username = strdup("ec2-user")) == NULL ||
(sc->sc_endpoint = strdup("169.254.169.254")) == NULL) {
log_warnx("failed to set defaults");
return (-1);
}
return (cloudinit_fetch(sc));
}
int
cloudinit(struct system_config *sc)
{
/* XXX get endpoint from DHCP lease file */
if ((sc->sc_endpoint = strdup("169.254.169.254")) == NULL) {
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log_warnx("failed to set defaults");
return (-1);
}
return (cloudinit_fetch(sc));
}
static int
cloudinit_fetch(struct system_config *sc)
{
int ret = 0;
char *str = NULL;
sc->sc_addr.ip = sc->sc_endpoint;
sc->sc_addr.family = 4;
/* instance-id */
if ((sc->sc_instance = metadata(sc,
"/latest/meta-data/instance-id", WORD)) == NULL)
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goto fail;
/* hostname */
if ((sc->sc_hostname = metadata(sc,
"/latest/meta-data/local-hostname", WORD)) == NULL)
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goto fail;
/* pubkey */
if ((str = metadata(sc,
"/latest/meta-data/public-keys/0/openssh-key", LINE)) == NULL)
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goto fail;
if (agent_addpubkey(sc, str, NULL) != 0)
goto fail;
/* optional username - this is an extension by meta-data(8) */
if ((str = metadata(sc, "/latest/meta-data/username", WORD)) != NULL) {
free(sc->sc_username);
sc->sc_username = str;
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str = NULL;
}
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/* userdata */
if ((sc->sc_userdata = metadata(sc, "/latest/user-data", TEXT)) == NULL)
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goto fail;
ret = 0;
fail:
free(str);
return (ret);
}