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Adding upstream version 2.13.

Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-04-13 11:50:33 +02:00
parent c0fbec1eb4
commit 94a061187a
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
579 changed files with 6165 additions and 1687 deletions

View file

@ -119,12 +119,9 @@ static void obj_add_result(struct json_object *o, const char *v, ...)
va_start(ap, v);
if (vasprintf(&value, v, ap) < 0)
value = NULL;
value = alloc_error;
if (value)
obj_add_str(o, "Result", value);
else
obj_add_str(o, "Result", "Could not allocate string");
obj_add_str(o, "Result", value);
va_end(ap);
}
@ -138,12 +135,9 @@ static void obj_add_key(struct json_object *o, const char *k, const char *v, ...
va_start(ap, v);
if (vasprintf(&value, v, ap) < 0)
value = NULL;
value = alloc_error;
if (value)
obj_add_str(o, k, value);
else
obj_add_str(o, k, "Could not allocate string");
obj_add_str(o, k, value);
va_end(ap);
}
@ -203,6 +197,11 @@ static void json_id_iocs_iocsc(struct json_object *obj_iocsc, __u64 iocsc)
obj_add_str(obj_iocsc, "NVM Command Set", nvmcs ? "Selected" : "Not selected");
}
static bool human(void)
{
return json_print_ops.flags & VERBOSE;
}
static void json_id_iocs(struct nvme_id_iocs *iocs)
{
struct json_object *r = json_create_object();
@ -700,17 +699,21 @@ static void json_smart_log(struct nvme_smart_log *smart, unsigned int nsid,
nvme_uint128_t media_errors = le128_to_cpu(smart->media_errors);
nvme_uint128_t num_err_log_entries = le128_to_cpu(smart->num_err_log_entries);
struct json_object *crt = json_create_object();
if (human()) {
struct json_object *crt = json_create_object();
obj_add_int(crt, "value", smart->critical_warning);
obj_add_int(crt, "available_spare", smart->critical_warning & 1);
obj_add_int(crt, "temp_threshold", (smart->critical_warning & 2) >> 1);
obj_add_int(crt, "reliability_degraded", (smart->critical_warning & 4) >> 2);
obj_add_int(crt, "ro", (smart->critical_warning & 8) >> 3);
obj_add_int(crt, "vmbu_failed", (smart->critical_warning & 0x10) >> 4);
obj_add_int(crt, "pmr_ro", (smart->critical_warning & 0x20) >> 5);
obj_add_int(crt, "value", smart->critical_warning);
obj_add_int(crt, "available_spare", smart->critical_warning & 1);
obj_add_int(crt, "temp_threshold", (smart->critical_warning & 2) >> 1);
obj_add_int(crt, "reliability_degraded", (smart->critical_warning & 4) >> 2);
obj_add_int(crt, "ro", (smart->critical_warning & 8) >> 3);
obj_add_int(crt, "vmbu_failed", (smart->critical_warning & 0x10) >> 4);
obj_add_int(crt, "pmr_ro", (smart->critical_warning & 0x20) >> 5);
obj_add_obj(r, "critical_warning", crt);
obj_add_obj(r, "critical_warning", crt);
} else {
obj_add_int(r, "critical_warning", smart->critical_warning);
}
obj_add_int(r, "temperature", temperature);
obj_add_int(r, "avail_spare", smart->avail_spare);
@ -1351,8 +1354,24 @@ static void json_single_property_human(int offset, uint64_t value64, struct json
static void json_single_property(int offset, uint64_t value64)
{
struct json_object *r = json_create_object();
char json_str[STR_LEN];
uint32_t value32 = (uint32_t)value64;
json_single_property_human(offset, value64, r);
if (human()) {
json_single_property_human(offset, value64, r);
} else {
sprintf(json_str, "0x%02x", offset);
obj_add_str(r, "property", json_str);
obj_add_str(r, "name", nvme_register_to_string(offset));
if (nvme_is_64bit_reg(offset))
sprintf(json_str, "%"PRIx64"", value64);
else
sprintf(json_str, "%x", value32);
obj_add_str(r, "value", json_str);
}
json_print(r);
}
@ -2521,10 +2540,16 @@ static void json_print_nvme_subsystem_list(nvme_root_t r, bool show_ana)
obj_add_str(subsystem_attrs, "Name", nvme_subsystem_get_name(s));
obj_add_str(subsystem_attrs, "NQN", nvme_subsystem_get_nqn(s));
obj_add_str(subsystem_attrs, "IOPolicy",
nvme_subsystem_get_iopolicy(s));
obj_add_str(subsystem_attrs, "Type",
nvme_subsystem_get_type(s));
if (json_print_ops.flags & VERBOSE) {
obj_add_str(subsystem_attrs, "Model",
nvme_subsystem_get_model(s));
obj_add_str(subsystem_attrs, "Firmware",
nvme_subsystem_get_fw_rev(s));
obj_add_str(subsystem_attrs, "IOPolicy",
nvme_subsystem_get_iopolicy(s));
obj_add_str(subsystem_attrs, "Type",
nvme_subsystem_get_type(s));
}
array_add_obj(subsystems, subsystem_attrs);
paths = json_create_array();
@ -2545,84 +2570,120 @@ static void json_ctrl_registers_cap(void *bar, struct json_object *r)
{
uint64_t cap = mmio_read64(bar + NVME_REG_CAP);
json_registers_cap((struct nvme_bar_cap *)&cap, obj_create_array_obj(r, "cap"));
if (human())
json_registers_cap((struct nvme_bar_cap *)&cap, obj_create_array_obj(r, "cap"));
else
obj_add_uint64(r, "cap", cap);
}
static void json_ctrl_registers_vs(void *bar, struct json_object *r)
{
uint32_t vs = mmio_read32(bar + NVME_REG_VS);
json_registers_version(vs, obj_create_array_obj(r, "vs"));
if (human())
json_registers_version(vs, obj_create_array_obj(r, "vs"));
else
obj_add_int(r, "vs", vs);
}
static void json_ctrl_registers_intms(void *bar, struct json_object *r)
{
uint32_t intms = mmio_read32(bar + NVME_REG_INTMS);
json_registers_intms(intms, obj_create_array_obj(r, "intms"));
if (human())
json_registers_intms(intms, obj_create_array_obj(r, "intms"));
else
obj_add_int(r, "intms", intms);
}
static void json_ctrl_registers_intmc(void *bar, struct json_object *r)
{
uint32_t intmc = mmio_read32(bar + NVME_REG_INTMC);
json_registers_intmc(intmc, obj_create_array_obj(r, "intmc"));
if (human())
json_registers_intmc(intmc, obj_create_array_obj(r, "intmc"));
else
obj_add_int(r, "intmc", intmc);
}
static void json_ctrl_registers_cc(void *bar, struct json_object *r)
{
uint32_t cc = mmio_read32(bar + NVME_REG_CC);
json_registers_cc(cc, obj_create_array_obj(r, "cc"));
if (human())
json_registers_cc(cc, obj_create_array_obj(r, "cc"));
else
obj_add_int(r, "cc", cc);
}
static void json_ctrl_registers_csts(void *bar, struct json_object *r)
{
uint32_t csts = mmio_read32(bar + NVME_REG_CSTS);
json_registers_csts(csts, obj_create_array_obj(r, "csts"));
if (human())
json_registers_csts(csts, obj_create_array_obj(r, "csts"));
else
obj_add_int(r, "csts", csts);
}
static void json_ctrl_registers_nssr(void *bar, struct json_object *r)
{
uint32_t nssr = mmio_read32(bar + NVME_REG_NSSR);
json_registers_nssr(nssr, obj_create_array_obj(r, "nssr"));
if (human())
json_registers_nssr(nssr, obj_create_array_obj(r, "nssr"));
else
obj_add_int(r, "nssr", nssr);
}
static void json_ctrl_registers_nssd(void *bar, struct json_object *r)
{
uint32_t nssd = mmio_read32(bar + NVME_REG_NSSD);
json_registers_nssd(nssd, obj_create_array_obj(r, "nssd"));
if (human())
json_registers_nssd(nssd, obj_create_array_obj(r, "nssd"));
else
obj_add_int(r, "nssd", nssd);
}
static void json_ctrl_registers_crto(void *bar, struct json_object *r)
{
uint32_t crto = mmio_read32(bar + NVME_REG_CRTO);
json_registers_crto(crto, obj_create_array_obj(r, "crto"));
if (human())
json_registers_crto(crto, obj_create_array_obj(r, "crto"));
else
obj_add_int(r, "crto", crto);
}
static void json_ctrl_registers_aqa(void *bar, struct json_object *r)
{
uint32_t aqa = mmio_read32(bar + NVME_REG_AQA);
json_registers_aqa(aqa, obj_create_array_obj(r, "aqa"));
if (human())
json_registers_aqa(aqa, obj_create_array_obj(r, "aqa"));
else
obj_add_int(r, "aqa", aqa);
}
static void json_ctrl_registers_asq(void *bar, struct json_object *r)
{
uint64_t asq = mmio_read64(bar + NVME_REG_ASQ);
json_registers_asq(asq, obj_create_array_obj(r, "asq"));
if (human())
json_registers_asq(asq, obj_create_array_obj(r, "asq"));
else
obj_add_uint64(r, "asq", asq);
}
static void json_ctrl_registers_acq(void *bar, struct json_object *r)
{
uint64_t acq = mmio_read64(bar + NVME_REG_ACQ);
json_registers_acq(acq, obj_create_array_obj(r, "acq"));
if (human())
json_registers_acq(acq, obj_create_array_obj(r, "acq"));
else
obj_add_uint64(r, "acq", acq);
}
static void json_ctrl_registers_cmbloc(void *bar, struct json_object *r)
@ -2631,79 +2692,113 @@ static void json_ctrl_registers_cmbloc(void *bar, struct json_object *r)
uint32_t cmbsz;
bool support;
cmbsz = mmio_read32(bar + NVME_REG_CMBSZ);
support = nvme_registers_cmbloc_support(cmbsz);
json_registers_cmbloc(cmbloc, support, obj_create_array_obj(r, "cmbloc"));
if (human()) {
cmbsz = mmio_read32(bar + NVME_REG_CMBSZ);
support = nvme_registers_cmbloc_support(cmbsz);
json_registers_cmbloc(cmbloc, support, obj_create_array_obj(r, "cmbloc"));
} else {
obj_add_int(r, "cmbloc", cmbloc);
}
}
static void json_ctrl_registers_cmbsz(void *bar, struct json_object *r)
{
uint32_t cmbsz = mmio_read32(bar + NVME_REG_CMBSZ);
json_registers_cmbsz(cmbsz, obj_create_array_obj(r, "cmbsz"));
if (human())
json_registers_cmbsz(cmbsz, obj_create_array_obj(r, "cmbsz"));
else
obj_add_int(r, "cmbsz", cmbsz);
}
static void json_ctrl_registers_bpinfo(void *bar, struct json_object *r)
{
uint32_t bpinfo = mmio_read32(bar + NVME_REG_BPINFO);
json_registers_bpinfo(bpinfo, obj_create_array_obj(r, "bpinfo"));
if (human())
json_registers_bpinfo(bpinfo, obj_create_array_obj(r, "bpinfo"));
else
obj_add_int(r, "bpinfo", bpinfo);
}
static void json_ctrl_registers_bprsel(void *bar, struct json_object *r)
{
uint32_t bprsel = mmio_read32(bar + NVME_REG_BPRSEL);
json_registers_bprsel(bprsel, obj_create_array_obj(r, "bprsel"));
if (human())
json_registers_bprsel(bprsel, obj_create_array_obj(r, "bprsel"));
else
obj_add_int(r, "bprsel", bprsel);
}
static void json_ctrl_registers_bpmbl(void *bar, struct json_object *r)
{
uint64_t bpmbl = mmio_read64(bar + NVME_REG_BPMBL);
json_registers_bpmbl(bpmbl, obj_create_array_obj(r, "bpmbl"));
if (human())
json_registers_bpmbl(bpmbl, obj_create_array_obj(r, "bpmbl"));
else
obj_add_uint64(r, "bpmbl", bpmbl);
}
static void json_ctrl_registers_cmbmsc(void *bar, struct json_object *r)
{
uint64_t cmbmsc = mmio_read64(bar + NVME_REG_CMBMSC);
json_registers_cmbmsc(cmbmsc, obj_create_array_obj(r, "cmbmsc"));
if (human())
json_registers_cmbmsc(cmbmsc, obj_create_array_obj(r, "cmbmsc"));
else
obj_add_uint64(r, "cmbmsc", cmbmsc);
}
static void json_ctrl_registers_cmbsts(void *bar, struct json_object *r)
{
uint32_t cmbsts = mmio_read32(bar + NVME_REG_CMBSTS);
json_registers_cmbsts(cmbsts, obj_create_array_obj(r, "cmbsts"));
if (human())
json_registers_cmbsts(cmbsts, obj_create_array_obj(r, "cmbsts"));
else
obj_add_int(r, "cmbsts", cmbsts);
}
static void json_ctrl_registers_cmbebs(void *bar, struct json_object *r)
{
uint32_t cmbebs = mmio_read32(bar + NVME_REG_CMBEBS);
json_registers_cmbebs(cmbebs, obj_create_array_obj(r, "cmbebs"));
if (human())
json_registers_cmbebs(cmbebs, obj_create_array_obj(r, "cmbebs"));
else
obj_add_int(r, "cmbebs", cmbebs);
}
static void json_ctrl_registers_cmbswtp(void *bar, struct json_object *r)
{
uint32_t cmbswtp = mmio_read32(bar + NVME_REG_CMBSWTP);
json_registers_cmbswtp(cmbswtp, obj_create_array_obj(r, "cmbswtp"));
if (human())
json_registers_cmbswtp(cmbswtp, obj_create_array_obj(r, "cmbswtp"));
else
obj_add_int(r, "cmbswtp", cmbswtp);
}
static void json_ctrl_registers_pmrcap(void *bar, struct json_object *r)
{
uint32_t pmrcap = mmio_read32(bar + NVME_REG_PMRCAP);
json_registers_pmrcap(pmrcap, obj_create_array_obj(r, "pmrcap"));
if (human())
json_registers_pmrcap(pmrcap, obj_create_array_obj(r, "pmrcap"));
else
obj_add_int(r, "pmrcap", pmrcap);
}
static void json_ctrl_registers_pmrctl(void *bar, struct json_object *r)
{
uint32_t pmrctl = mmio_read32(bar + NVME_REG_PMRCTL);
json_registers_pmrctl(pmrctl, obj_create_array_obj(r, "pmrctl"));
if (human())
json_registers_pmrctl(pmrctl, obj_create_array_obj(r, "pmrctl"));
else
obj_add_int(r, "pmrctl", pmrctl);
}
static void json_ctrl_registers_pmrsts(void *bar, struct json_object *r)
@ -2712,37 +2807,53 @@ static void json_ctrl_registers_pmrsts(void *bar, struct json_object *r)
uint32_t pmrctl;
bool ready;
pmrctl = mmio_read32(bar + NVME_REG_PMRCTL);
ready = nvme_registers_pmrctl_ready(pmrctl);
json_registers_pmrsts(pmrsts, ready, obj_create_array_obj(r, "pmrsts"));
if (human()) {
pmrctl = mmio_read32(bar + NVME_REG_PMRCTL);
ready = nvme_registers_pmrctl_ready(pmrctl);
json_registers_pmrsts(pmrsts, ready, obj_create_array_obj(r, "pmrsts"));
} else {
obj_add_int(r, "pmrsts", pmrsts);
}
}
static void json_ctrl_registers_pmrebs(void *bar, struct json_object *r)
{
uint32_t pmrebs = mmio_read32(bar + NVME_REG_PMREBS);
json_registers_pmrebs(pmrebs, obj_create_array_obj(r, "pmrebs"));
if (human())
json_registers_pmrebs(pmrebs, obj_create_array_obj(r, "pmrebs"));
else
obj_add_int(r, "pmrebs", pmrebs);
}
static void json_ctrl_registers_pmrswtp(void *bar, struct json_object *r)
{
uint32_t pmrswtp = mmio_read32(bar + NVME_REG_PMRSWTP);
json_registers_pmrswtp(pmrswtp, obj_create_array_obj(r, "pmrswtp"));
if (human())
json_registers_pmrswtp(pmrswtp, obj_create_array_obj(r, "pmrswtp"));
else
obj_add_int(r, "pmrswtp", pmrswtp);
}
static void json_ctrl_registers_pmrmscl(void *bar, struct json_object *r)
{
uint32_t pmrmscl = mmio_read32(bar + NVME_REG_PMRMSCL);
json_registers_pmrmscl(pmrmscl, obj_create_array_obj(r, "pmrmscl"));
if (human())
json_registers_pmrmscl(pmrmscl, obj_create_array_obj(r, "pmrmscl"));
else
obj_add_uint(r, "pmrmscl", pmrmscl);
}
static void json_ctrl_registers_pmrmscu(void *bar, struct json_object *r)
{
uint32_t pmrmscu = mmio_read32(bar + NVME_REG_PMRMSCU);
json_registers_pmrmscu(pmrmscu, obj_create_array_obj(r, "pmrmscu"));
if (human())
json_registers_pmrmscu(pmrmscu, obj_create_array_obj(r, "pmrmscu"));
else
obj_add_uint(r, "pmrmscu", pmrmscu);
}
static void json_ctrl_registers(void *bar, bool fabrics)
@ -2884,14 +2995,20 @@ static void json_ctrl_register_human(int offset, uint64_t value, struct json_obj
static void json_ctrl_register(int offset, uint64_t value)
{
bool human = json_print_ops.flags & VERBOSE;
struct json_object *r;
char json_str[STR_LEN];
sprintf(json_str, "register: %#04x", offset);
r = obj_create(json_str);
obj_add_uint64(r, nvme_register_to_string(offset), value);
json_ctrl_register_human(offset, value, r);
if (human) {
obj_add_uint64(r, nvme_register_to_string(offset), value);
json_ctrl_register_human(offset, value, r);
} else {
obj_add_str(r, "name", nvme_register_symbol_to_string(offset));
obj_add_uint64(r, "value", value);
}
}
static void json_nvme_cmd_set_independent_id_ns(struct nvme_id_independent_id_ns *ns,
@ -2908,6 +3025,9 @@ static void json_nvme_cmd_set_independent_id_ns(struct nvme_id_independent_id_ns
obj_add_int(r, "nvmsetid", le16_to_cpu(ns->nvmsetid));
obj_add_int(r, "endgid", le16_to_cpu(ns->endgid));
obj_add_int(r, "nstat", ns->nstat);
obj_add_int(r, "kpios", ns->kpios);
obj_add_int(r, "maxkt", le16_to_cpu(ns->maxkt));
obj_add_int(r, "rgrpid", le32_to_cpu(ns->rgrpid));
json_print(r);
}
@ -2999,8 +3119,6 @@ static void json_nvme_id_ns_descs(void *data, unsigned int nsid)
static void json_nvme_id_ctrl_nvm(struct nvme_id_ctrl_nvm *ctrl_nvm)
{
struct json_object *r = json_create_object();
__u16 rsvd = (ctrl_nvm->aocs & 0xfffe) >> 1;
__u8 ralbas = ctrl_nvm->aocs & 0x1;
obj_add_uint(r, "vsl", ctrl_nvm->vsl);
obj_add_uint(r, "wzsl", ctrl_nvm->wzsl);
@ -3012,9 +3130,14 @@ static void json_nvme_id_ctrl_nvm(struct nvme_id_ctrl_nvm *ctrl_nvm)
obj_add_uint(r, "wzdsl", ctrl_nvm->wzdsl);
obj_add_uint(r, "aocs", le16_to_cpu(ctrl_nvm->aocs));
if (rsvd)
obj_add_uint(r, "[15:1]: Reserved", rsvd);
obj_add_uint(r, "[0:0]: Reporting Allocated LBA Supported", ralbas);
if (json_print_ops.flags & VERBOSE) {
__u16 rsvd = (ctrl_nvm->aocs & 0xfffe) >> 1;
__u8 ralbas = ctrl_nvm->aocs & 0x1;
if (rsvd)
obj_add_uint(r, "[15:1]: Reserved", rsvd);
obj_add_uint(r, "[0:0]: Reporting Allocated LBA Supported", ralbas);
}
obj_add_uint(r, "ver", le32_to_cpu(ctrl_nvm->ver));
obj_add_uint(r, "lbamqf", ctrl_nvm->lbamqf);
@ -4247,6 +4370,33 @@ static struct json_object *json_list_item_obj(nvme_ns_t n)
return r;
}
static void json_simple_list(nvme_root_t t)
{
struct json_object *r = json_create_object();
struct json_object *jdevices = json_create_array();
nvme_host_t h;
nvme_subsystem_t s;
nvme_ctrl_t c;
nvme_ns_t n;
nvme_for_each_host(t, h) {
nvme_for_each_subsystem(h, s) {
nvme_subsystem_for_each_ns(s, n)
array_add_obj(jdevices, json_list_item_obj(n));
nvme_subsystem_for_each_ctrl(s, c) {
nvme_ctrl_for_each_ns(c, n)
array_add_obj(jdevices, json_list_item_obj(n));
}
}
}
obj_add_array(r, "Devices", jdevices);
json_print(r);
}
static void json_list_item(nvme_ns_t n)
{
struct json_object *r = json_list_item_obj(n);
@ -4256,7 +4406,10 @@ static void json_list_item(nvme_ns_t n)
static void json_print_list_items(nvme_root_t t)
{
json_detail_list(t);
if (json_print_ops.flags & VERBOSE)
json_detail_list(t);
else
json_simple_list(t);
}
static unsigned int json_subsystem_topology_multipath(nvme_subsystem_t s,
@ -4350,10 +4503,16 @@ static void json_simple_topology(nvme_root_t r)
obj_add_str(subsystem_attrs, "Name", nvme_subsystem_get_name(s));
obj_add_str(subsystem_attrs, "NQN", nvme_subsystem_get_nqn(s));
obj_add_str(subsystem_attrs, "IOPolicy",
nvme_subsystem_get_iopolicy(s));
obj_add_str(subsystem_attrs, "Type",
nvme_subsystem_get_type(s));
if (json_print_ops.flags & VERBOSE) {
obj_add_str(subsystem_attrs, "Model",
nvme_subsystem_get_model(s));
obj_add_str(subsystem_attrs, "Firmware",
nvme_subsystem_get_fw_rev(s));
obj_add_str(subsystem_attrs, "IOPolicy",
nvme_subsystem_get_iopolicy(s));
obj_add_str(subsystem_attrs, "Type",
nvme_subsystem_get_type(s));
}
array_add_obj(subsystems, subsystem_attrs);
namespaces = json_create_array();
@ -4468,6 +4627,7 @@ static void json_directive_show(__u8 type, __u8 oper, __u16 spec, __u32 nsid, __
void *buf, __u32 len)
{
struct json_object *r = json_create_object();
struct json_object *data;
char json_str[STR_LEN];
sprintf(json_str, "%#x", type);
@ -4481,7 +4641,13 @@ static void json_directive_show(__u8 type, __u8 oper, __u16 spec, __u32 nsid, __
sprintf(json_str, "%#x", result);
obj_add_result(r, json_str);
json_directive_show_fields(type, oper, result, buf, r);
if (json_print_ops.flags & VERBOSE) {
json_directive_show_fields(type, oper, result, buf, r);
} else if (buf) {
data = json_create_array();
d_json((unsigned char *)buf, len, 16, 1, data);
obj_add_array(r, "data", data);
}
json_print(r);
}
@ -4588,9 +4754,9 @@ static void json_output_error_status(int status, const char *msg, va_list ap)
_cleanup_free_ char *value = NULL;
if (vasprintf(&value, msg, ap) < 0)
value = NULL;
value = alloc_error;
sprintf(json_str, "Error: %s", value ? value : "Could not allocate string");
sprintf(json_str, "Error: %s", value);
r = obj_create(json_str);
if (status < 0) {
@ -4628,26 +4794,23 @@ static void json_output_message(bool error, const char *msg, va_list ap)
_cleanup_free_ char *value = NULL;
if (vasprintf(&value, msg, ap) < 0)
value = NULL;
value = alloc_error;
obj_add_str(r, error ? "error" : "result", value ? value : "Could not allocate string");
obj_add_str(r, error ? "error" : "result", value);
obj_print(r);
}
static void json_output_perror(const char *msg)
static void json_output_perror(const char *msg, va_list ap)
{
struct json_object *r = json_create_object();
_cleanup_free_ char *error = NULL;
if (asprintf(&error, "%s: %s", msg, strerror(errno)) < 0)
error = NULL;
if (vasprintf(&error, msg, ap) < 0)
error = alloc_error;
if (error)
obj_add_str(r, "error", error);
else
obj_add_str(r, "error", "Could not allocate string");
obj_add_key(r, "error", "%s: %s", error, strerror(errno));
json_output_object(r);
}